For more information on preparing for this trek, including when to go, what to bring, what permits are required, and safety precautions including altitude sickness, and water contamination, see Trekking in Nepal.
This circuit is considered one of the best treks in the world though road construction is threatening its reputation and its future as a classic trek. Yet no one disputes that the scenery is outstanding: 17 to 21 days long, this trek takes you through distinct regional scenery of rivers, flora, fauna and above all - mountains.
There are four regions that are passed through on the trek; Lamjung, Manang, Mustang and Myagdi. Lamjung and Myagdi of the lower elevations are both predominantly Hindu and with lush green subtropical valleys with villages and terraced farming.
Manang and Mustang are of the higher elevations and are predominantly Tibetan Buddhist. The Manang people are Gurung (not Tibetan descent) and are very proud of their unique cultural heritage and merging of lower land Gurung and Tibetan cultural influences. People of Mustang identify themselves a lot closer with Tibet and the Mustang region has actually been part of Tibet in history. Mustang also is one of the last places in the world to view the ancient Bonpo Religion in action. Villages to note for Bonpo are Thini and Lupra near Jomsom, and Nargon near Kobang.
The trek goes counter-clockwise from Besisahar to Nayapul and reaches its summit in Thorung La (pass) at the height of 5416m, or 17,769 feet. The route goes past the following mountains: Manaslu (an 8,000-plus meter peak), Langtang Himal, Annapurna II and IV, Annapurna III and Gangapurna, and, of course, Annapurna I and Dhaulagiri -- passing through the world's deepest gorge in between those two 8,000-plus meter peaks. Poon Hill, at the end of the trek, affords views of those two mountains, as well as South Annapurna and Macchupucchre, the "Fishtail Mountain."
The trek also goes through Buddhist villages and Hindu holy sites, most notably the village of Muktinath, a holy site for both Buddhists and Hindus, and Braga, one of the oldest monasteries in the region.
From Dharapani to Kagbeni you will be walking the Annapurna section of The Great Himalaya Trail, a long distance trekking route that connects Nepal from East to West.
The eastern portion of the trek follows the Marsyangdi River upstream, to its source near the village of Manang. To get there several days of up-hill hiking are required. Then the route goes over the pass, a grueling day of hiking, and back down the other side, where it meets up with the Kali Gandaki River. After the pass, an alternative to walking is to rent a mountainbike (in Muktinath or Jomsom), and bike your way down, following the jeep road or alternative trails. Mustang is on its way to become one of the world's major mountain-biking destinations, thanks to its still beautiful sceneries and the fact that one descends from 4000m. to 1200m. altitude along this jeep road or single tracking it on alternative walking trails. The road construction is thus turned into a positive thing for tourism. At the end of the trek, several options are available: following the river further to the road proper to Beni and catching a bus to Pokhara, or adding on a trek to the Annapurna Base Camp (ABC Trek), aka the Annapurna Sanctuary Trek.
This is a "teahouse trek," meaning there are villages with lodges and restaurants to eat and stay in along the entire route. You are expected to eat breakfast and dinner in the same lodge where you are spending the night. Prices of rooms are seemingly inexpensive because of this (100-300Rs for a double) - lodge owners tend to make more money on the food and drinks they are selling you than on the room where you are sleeping. All the lodges have electricity, though no wall outlets in the rooms. Most of them offer also WiFi, except when there's a power cut.
Before you go, check on the status of the road being built on the eastern portion of the trek from Besisahar to Chame. In the winter of 2009, construction of the road interfered with trekking, with some parts being dangerous to navigate. Locals tend to talk up the road and downplay its negative aspects. Be advised: road walks in Nepal are very unpleasant, and unhealthy, due to the large amounts of powdery dust that tend to be kicked up from passing jeeps and buses. The road on both sides of Thorung La does create excellent possibilities for mountainbiking though, and traffic is very, very little (20-30 vehicles per day on 'busy' stretches seems a realistic estimation).
Be prepared for all manner of bathrooms. Sometimes you'll get a modern flush toilet with private access, other times you'll have to venture out in the cold to use a smelly squat toilet. Even so, all lodges have running water. However, it may not always be HOT water. Typically, a solar shower will give you a luke warm 'power shower' if it's been a sunny day, otherwise the thing to ask is if the water pipes run through the fire in the dining room or kitchen, as once the fire is going you'll be steaming with the best of them!
Budget for 2000 NR per day if you are a very modest-spending trekker, though those on a budget can get by with less and people who want to live it up a little should allow for more. Please note that despite the efforts of ACAP there are still some wild swings in pricing that will surprise. For some reason, the region between Tal and Chame is more expensive than from Chame to Manang which is more difficult to access! As the prices seem to be fairly set throughout each village though, do not concern yourself with hunting around a village looking for a cheaper place and try not to stop at the first lodge you see so that trekkers are spread through the village. Quite often the nicest lodges are on the way out of town. Generally this region is much less expensive than the Everest Base Camp trekking region.
Most guest houses along the circuit offer more or less the same menu, though some guest houses may make better pasta, or noodles, or sandwiches, than another. These menus consist of dal bhat (with refills!) and variations of fried rice, chow mein, fried potatoes, momos, pizza, spaghetti/macaroni, Indian dishes, sandwiches, omelettes, toast, muesli, and sometimes burgers.
Most towns shown on the map will have some form of lodging available, i.e. food, beds, and blankets. As of June 2017, free WiFi and charging is generally available (with some exceptions) up to Manang on the east side of the pass, and up to Muktinath on the west side of the the pass; WiFi is completely unavailable at Thorung Phedi. Higher than Manang you may find free WiFi and charging, but generally most places will charge a modest fee (eg Rs100-400) to use WiFi or charge. Even then WiFi can be intermittent or slow, and occasional power cuts to the villages mean, of course, that you won't get any WiFi or power. Be prepared for similar problems such as malfunctioning shower heaters, poorly cooked food, insufficient blanket/quilt, leaking wall/windows, or lack of wash basin in toilet, though generally these problems are more infrequent.
Though not required, porters and/or guides can be easily hired in Pokhara or Kathmandu at many travel agencies, as well as the towns on the circuit. Often horses can be hired as well to carry you or your gear. As a classic "tea-house trek," which goes from village to village and does not require trekkers to bring along food or camping equipment, porters and guides are not necessary, though many trekkers still like to use them.
There are guesthouses in all the villages scattered along the trail so set whatever pace you like and enjoy the views. The local bus runs all the way from Besisahar to Ngadi. The hike between Besisahar and Ngadi is pleasant enough. It is the jungly bit of the hike and provides a nice contrast to the various ecosystems you will be hiking through in the coming days. Therefore I would recommend against taking a bus. It will likely take you the same amount of time either way as the road is a potholed mess and the buses are slow, uncomfortable and run infrequently.
You can try and walk the lower stages at a faster pace maybe combining two of them into one so that more time can be spent on acclimatization on the higher stages. For example a couple of extra days can be spent at Manang and utilized by climbing to one of the many peaks around it and coming back down so as to increase the production of red blood cells. You can also see the origin of the Marsyandi river in Manang. Taking the high trail from Pisang via Ghyaru and Ngawal, and sleeping in either of those villages also helps acclimatization. As those villages are already higher in elevation than Manang, the extra acclimatization day in Manang can be skipped. The best part about this trek is the varied scenery it has to offer. You start from tropical forest in Besisahar, see terminal moraine near Manang and then move past the snow line across the Thorung La and then to the barren landscape of lower Mustang and Muktinath.
Besisahar (820 m) to Khudi: 7 km, 2.00 hrs
(note: It can typically be a long journey to get to Besisahar from Kathmandu. If you can arrive at a reasonable time it's worth considering walking directly on to Khudi and stopping there for the night. It'll be more basic but cheaper than the much larger Besisahar, and it will give you a good start the next morning. The first day, usually Besisahar to Bahundanda, can be brutally hot, and ends with a long climb. Knocking a couple of hours off of this and enabling you to spend more time out of the heat of the day isn't a bad thing.)
Khudi (790 m) to Bhulbhule: 2 km, 0.30 hrs
Bhulbhule (840 m) to Ngadi: 4 km, 1.15 hrs
(note: Ngadi has good views of the snow-capped mountains in the early morning)
Ngadi (890 m) to Bahundanda: 4 km, 1.45 hrs
Bahundanda (1310 m) to Ghermu: 5 km, 1.30 hrs
Ghermu (1130 m) to Jagat: 3 km, 1.30 hrs
(note: Ghermu sits in an open valley and is therefore a more pleasant place to spend the night than Jagat. Jagat is a dirty, congested village that sits in a narrow chasm.)
Jagat (1300 m) to Chamche: 4 km, 1.00 hrs
Chamche (1385 m) to Tal: 5 km, 2.30 hrs
(Tal is a nice place to stay, sitting in an open valley on a naturally dammed section of the river)
Tal (1700 m) to Karte: 4 km, 1.30 hrs
Karte (1870 m) to Dharapani: 2 km, 1.00 hrs
(note: Dharapani is a good place to stay with good views up both canyons. There is also an excellent side trek to Bimthang that starts here up the valley to your right.)
Dharapani (1900 m) to Bagarchap: 2 km, 1.00 hrs
Bagarchap (2160 m) to Danaqyu: 2 km, 0.45 hrs
Danaqyu (2200 m) to Koto:
(upper trail) Danaqyu to Thanchowk: 6 km, 2.15 hrs
(upper trail) Thanchowk (2570 m) to Koto: 4 km, 1.00 hrs
(lower trail) Danaqyu to Latamarang: 1.5 km, 1.00 hrs
(lower trail) Latamarang (2400 m) to Koto: 5.5 km, 2.00 hrs
(note: Koto is small, clean and quiet as compared to the hustle and chaos of Chame. In Koto there is also a nice Tibetan Buddhist Monastery and great mountain vistas.)
Koto (2640 m) to Chame: 2 km, 0.45 hrs
(note: Chame has a big selection of guesthouses. Royal Garden at the end of the village is as luxurious as one would find on the trek - hot showers, immaculate bathrooms, well-insulated rooms and tasty food. If you need medicine, Chame is the first town on the trail where you can stock up on meds. There is a tourist office in Chame but it seems permanently closed. There is also hot springs on the other side of the river, as well as a local restaurant for cheap food.)
Chame (2710 m) to Bhratang: 7 km, 2.00 hrs (Bhratang has a large apple cider plant, and not much in the sense of guest houses. 150 rupees per cup of cider. You can also often buy apples direct from people on the trek for about 150 rupees per kilo.)
Bhratang (2850 m) to Dhukur Pokhari: 6 km, 1.30 hrs
Dhukur Pokhari (3240 m) to Humde:
(note: there is a trail between Lower and Upper Pisang. Upper Pisang has quaint old-school lodging and an active Tibetan Buddhist Monastery worth visiting for the Sunset and Sunrise chants. Furthermore, the villages along the upper trail are full of character and the views along the trail are perhaps the best of the whole circuit, guides may try to dissuade you from doing the Upper Trail - take no notice, it is the highlight of the trek.)
(upper trail) Dhukur Pokhari to Upper Pisang: 1.5 km, 1.30 hrs
(note: Upper Pisang has a large selection of guesthouses, some are well-insulated with attached bathrooms)
(upper trail) Upper Pisang (3310 m) to Ghyaru: 4.5 km, 1.45 hrs
(note: the trail from Upper Pisang to Ghyaru is a steep continuous climb of 420m. If you are already experiencing headaches or other altitude-related symptoms at Lower/Upper Pisang, it is best to sleep lower and do the climb the next day rather than sleeping at Ghyaru at 3730m and risk making your altitude sickness worse)
(upper trail) Ghyaru (3730 m) to Ngawal: 5 km, 1.45 hrs
(upper trail) Ngawal (3680 m) to Humde: 2 km, 0.45 hrs
(Note: There are two trails leaving Ngawal - one (marked in blue and white) drops straight down to Humde, the other (marked in Red and White) stays high across a small plateau, then drops into a valley further on. The higher route is nicer but slighty longer.)
(lower trail) Dhukur Pokhari to Lower Pisang: 6 km, 1.00 hrs
(lower trail) Lower Pisang (3250 m) to Humde: 7 km, 2.00 hrs
Humde (3330 m) to Bhraga: 6 km, 1.45 hrs
(note: Bhraga has one of the oldest bakeries on the Annapurna Circuit and the Himalayan Lodge boasts a Sauna for 1000 rupees.)
Bhraga (3450 m) to Manang: 2 km, 0.30 hrs
(note: Manang is a pleasant enough place to spend a rest day. It is clean and has a couple of “movie houses” with good DVD collections. There are many day trips one can take here. A map of times, distances, and locations is next to the central stupa. The volunteer doctors at the Himalayan Rescue Association hosts a great talk about hiking safety at altitude everyday at 3pm here. It's a very interesting and potentially life-saving talk to attend. This is the last stop to see a doctor or get medicine that you may need - altitude meds, antibiotic, painkillers, etc. At the very least, get the phone number for the clinic here and keep it in your pocket. The doctors on staff are western-trained and very familiar with common issues that hikers deal with)
Manang (3540 m) to Yak Kharka: 9 km, 3.00 hrs
Yak Kharka is a small collection of 3 guesthouses and lacking in other amenities, although it is preferable to Letdar which has even less in the way of accommodation.
Yak Kharka (4050 m) to Letdar: 1 km, .30 hrs
Letdar (4200 m) to Thorang Phedi: 5 km, 2.30 hrs
(note: despite its elevation, Thorang Phedi has bakeries and real coffee made from grounds. There are several guesthouses here, make it a good place to spend the night. The Windhorse restaurant and lodge is huge and feels like a hostel in Thailand. Great food and good place to socialize.)
Thorang Phedi (4450 m) to High Camp: 1 km, 1.00 hrs (very steep up)
(note: High Camp has only one lodge. During peak seasons, the lodge fills up by 11:30am. Hikers who arrives after the lodge fills up have the choice of either sleeping in the dining room or going back down to Thorang Phedi. The bathrooms at High Camp are typical outhouses, and often at peak times lines can form.)
High Camp (4850 m) to Thorung Pass: 5 km, 2.15 hrs
(note: A slow hike with lots of false peaks, briefly crossing a glacial channel. There are two teahouses along the way that serve hot drinks, one about 45 minutes after High Camp, and another at the top of the Pass. 300 rupees per milk tea. There is a little trail on top of the pass that leads to an overlook with good views)
Thorung Pass (5416 m) to Charabu: 6 km, 2.45 hrs
A steep descent, often snow and ice covered in cold season that finishes into a small collection of teahouses.
Charabu (4230 m) to Muktinath: 4 km, 1.15 hrs
(note: When you hit Muktinath, take the right hand side of the huge monastic complex in front of you to avoid a lengthy detour to the left. Mukinath is a desolate place, with few redeeming features - if you have to stay here, The Bob Marley Guesthouse in the centre of town is head and shoulders above the competition. Good food, nice showers (on the second floor) and an open fire and pool table. Alternatively "The Path of Dream" (sic) is very acceptable. Hot showers and good food, clean rooms. If possible, push on to Kagbeni which is far more charming, in a medieval Tibetan fashion.)
Muktinath (3800 m) to Kagbeni:
(note: When you arrive in Muktinath, you are back to civilization. The road starts at here and can be used to walk down. The road route is a wide, fairly level route that will get you a good distance quickly, however you will have to contend with the dust thrown up by the frequent 4x4s and less scenery. You can catch a truck from Muktinath to Jomsom for a flight, or jeep/bus all the way back to Pokhara if you want. Muktinath is also the perfect place to take a mountainbike (available for rent - [email protected] Ph no:9841259360) and start one of the world's best downhill rides. Muktinath is not an endearing place to stay – though it is worth a brief stop at the tourist office to read up on the history and culture of the area and worth a look at the religious precint above town, holding pilgrimage sites for both Hindus (the 104 holy water spouts) and Buddhists (the eternal flames). If you have the energy after the pass you can stay down the road in Jharkot or on the other side of the valley in the very inexpensive and charming hamlets of Purang and Jhong.)
(high trail) Muktinath to Jhong: 3 km, 1.5 hrs
(high trail) Jhong (3540 m) to Kagbeni: 6 km, 1.45 hrs (Note: The high trail to Kagbeni offers fantastic views of the surrounding mountains and a taste of the upper mustang region's lovely villages (Jhong and Purang) and it's barren landscape.
(low trail) Muktinath to Jharkot: 1 km, 1 hrs (note: 1 hour is possibly longer than you would expect to take; the road is well worn and mainly on a fairly gentle downhill)
(low trail) Jharkot (3550 m) to Khinga: 3 km, 0.45 hrs
(low trail) Khinga (3355 m) to Kagbeni: 6 km, 1.45 hrs
(note: Kagbeni is an amazing little town with hidden alleyways and European like charm. It is easily a place to spend a couple of nights exploring it's little alleyways and day trips in the area. A good place to stay is Yak Donalds, with nice clean rooms as low as 300 rupees. Do try the Dancing Yak Restaurant in town if you like local fare, although the lady doesnt speak English well you will have a phenomenal experience, often being invited to eat in the kitchen area.)
Kagbeni (2800 m) to Eklebhatti: 2 km, 1.00 hrs
(note: The hike into gale like winds along the dusty road from Kagbeni to Jomsom with jeeps and motorbikes hurtling by at high speed is… not enjoyable. Take a jeep instead. The winds and traffic in this valley (all the way to Kalopani) get worse as the day goes on - leave early to avoid the worst of it)
Eklebhatti (2740 m) to Jomsom: 7 km, 2.00 hrs (but seems longer)
(note: hiking into Jomsom feels like hiking into a ghost town and will leave you with an uneasy feeling that you won’t find a place to stay. Keep walking. All the guesthouses are on the other side of the town by the airport. It will take about 15 minutes to get through town to where the guesthouses are. This area near the airport also has the only ATMs available on the hike. There are a number of banks, but only two with ATMs, they are unreliable and charge 400 rupees per withdrawal (with a maximum withdrawal of 10,000). There are also money changers here. Not a highly attractive town. Trekkers often choose to end here as it now gets dry and dusty and you will be passed by numerous motor bikes and jeeps. From Jomsom you can either take a 15 minute flight back to Pokhara for $100 or bus it for ~$20 on a multi-stage all-day affair that will get you back to Pokhara after dark. Bus: Jomsom to Ghasa; change buses; Ghasa to Baglung (or get off at Gharkhola); change bus; Baglung to Pokhara.) Be warned! The Bus ride from Jomsom to Pokhara takes over 12 hours in most cases. )
Jomsom (2720 m) to Marpha: 6 km, 1.30 hrs. Marpha has the best apples in Nepal and there are numerous opportunities to buy apple products and apple brandy from the distillery, provided they have not closed for season. Maprpha also has monastery worth visiting.
(Or three hours via the new NATT trails (marked in Red and White)
Marpha (2670 m) to Tukuche: 6 km, 1.30 hrs
Tukuche (2590 m) to Kobang: 4 km, 1.00 hrs
Kobang (2640 m) to Larjung: 1 km, 1.00 hrs
Larjung (2550 m) to Kokhethanti: 3 km, 1.00 hrs
Kokhethanti (2525 m) to Kalopani/Lete: 3 km, 1.00 hrs
Kalopani/Lete (2535 m) to Ghasa: 7 km, 2.30 hrs
Ghasa (2010 m) to Kopochepani: 4 km, 1.30 hrs A route off to the left (marked with Red and White marks) takes you on a steep incline away from the road and back onto a proper path. This way is much harder, but much more fulfilling)
Kopochepani (1480 m) to Rupsechhahara: 2 km, 0.45 hrs
Rupsechhahara (1500 m) to Dana: 3 km, 1.00 hrs
Dana (1400 m) to Tatopani: 4 km, 1.30 hrs (Tatopani has great hot springs, and easily a good place to spend the night. The Tatopani Pools are 150 rupees entry fee and have a restaurant and massage services.)
Tatopani (1200 m) to Ghara: 5 km, 2.15 hrs
Ghara (1700 m) to Sikha: 6 km, 1.00 hrs
Sikha (1935 m) to Chitre: 1 km, 1.45 hrs
Chitre (2350 m) to Ghorepani: 2 km, 1.15 hrs
Ghorepani to Poonhill: 3km, 1.30 hrs
(note. The walk up Poon Hill in the morning can get very crowded. Rather than head up there, head up the hill on the other side (as if heading to Chomrong), you'll have a better view and you'll have it to yourself.) This alternative viewpoint has a large stone marker and a small shop selling snacks and drinks
(note. Continuing on the path mentioned in the note above, will take you along a ridge, and across a valley to the village of Chomrong, 2 days into the Annapurna Base Camp trek )
Ghorepani (2870 m) to Ulleri: 2 km, 1.00 hrs
Ulleri (2010 m) to Tikhedhunga: 2 km, 1.00 hrs
Tikhedhunga (1500 m) to Birethanti: 6 km, 2.00 hrs
Birethanti (1025 m) to Nayapul (1070 m): 1 km, 0.30 hrs Once in Naya Pul you are back on the main road and can catch a bus/taxi or hitch hike back to Pokhara.
Day 1: Drive from Pokhara to Besisahar. Bike to Syange (~6 hours, chunky road, rolling hills, tropical climate).
Day 2: Syange to Chame. (~12 hours, chunky jeep track, begin climbing in altitude, tropical to alpine climate). Long climbs before Timang and Dhikur Pokhari.
Day 3: Chame to Manang. (~9 hours, road is more smooth/hard dirt, climate runs from alpine to high alpine/near tree line). Long climb before Humde.
Day 4: Optional acclimatization/rest day.
Day 5: Manang to Thorung Phedi. (~9 hours, dirt trekking trail, climate is more highlands). Long climb including stairs before Gunsang.
Day 6: Thorung Phedi to Muktinath. (~8 hours to Thorung La, ~2 hours to Muktinath; snow/dirt/scree trekking trail). Steep climb to Thorung High Camp, then more or less uphill the whole way to Thorung La. Snow traverses with a bike can be tricky. Some stretches going downhill to Muktinath are very steep. Temple in Muktinath is a big religious site.
Day 7: Muktinath to Marpha. (time will vary here; apparently there is good singletrack near Lubra, but we missed a turn and had to walk down some steep trekking trails. You can also take the jeep track which avoids Lubra and goes more around Jharkot and Kagbeni). Apparently Marpha is known for its apple juice.
Day 8: Marpha to Tatopani. (~7 hours, almost entirely downhill, alpine to tropical climate). Apparently Tatopani is known for its hot springs.
Day 9: Tatopani to Beni (a couple of hours, tropical climate) and drive back to Pokhara.
A small, traditional village located on a beautiful mountainside around 8km away from Besisahar (either a short 2 hour hike or there is also a local bus that makes the trip once a day, leaving from outside Hotel Tukuche at 2pm). The Heaven Hill Homestay in the village provides an excellent opportunity to experience Nepali village life, with accomodation including a traditional Roundhouse. Its position on top of the mountain provides excellent views of the Annapurna circuit, and could make an excellent side trip before starting the circuit.
Naar-Pho Valley was opened to foreigners only in 2002 and only a comparatively few tourists have visited the area so far. The area has a totally Tibetan character and the two main villages Phugaon and Naar are both located at over 4000m altitude. A trekking permit is needed for this restricted area, and it must be arranged through a trekking agency. It is also compulsory to have a guide, and as there is not much tourism infrastructure to speak of, most groups visiting the area choose an old style camping trek with porters, cooks etc. Entrance to Naar-Pho is from Koto (before Chame) and exit is via Kang La pass 5300m to Ngawal. A side trip to Naar-Pho requires a total of 9 days if two nights are spent in both Phugaon and Naar. As hiking from Koto to Ngawal takes normally 2 days along the AC, a side trip to Naar-Pho adds about 7 days to the total trekking time.
This is one of the highest lakes in the world at 4920 m. and requires 2-3 days from Manang. Walk 3hrs to Khangsar, some maps will show a path along the south side of the valley, but this path is old, unused and wrecked by landslides, stick to the northern side.
You may be confused by people referring to the upper and lower path... there are actually three different paths. Two paths leave Khangsar, the lower one is (more) landslide prone and has no teahouses, use the upper one. About 45min after Shree Kharka the path splits - the path upwards involves a lot more climbing and descending and is unsafe (the signpost to it is crossed out and has "Danger" scratched on it) - take the path downwards. Some people refer to this downwards path as the "lower path", causing confusion with the "even lower" path. Be aware that the path recommended above is marked as only a minor trail on some maps.
Out of Khangsar take the upper path 40 minutes to a monastery and a further 20 minutes to Shree Kharka, with two tea houses where you can have lunch or spend the night. There is another teahouse about 20 minutes after Shree Kharka.
Three hours on from Shree Kharka you will reach Tilicho Base Camp, with two teahouses and another under construction. Tilicho Basecamp is a nice place to spend the night, the dining room in the guesthouse is well-heated, the rooms are clean and half of the guest rooms have attached bathrooms.
The lake is reached by walking three hours up from the Tilicho Base Camp at approximately 4100m. It's a tough, steep, consistent climb and will be by far the highest you've been at this point in your trek. Snow leopards are around in this area but you are more likely to see blue sheep and yaks. It's possible to reach base camp and climb to the lake in one day from Shree Kharka but it's best to stay overnight at base camp, then head up very early in the morning to get the best weather - it gets very windy after 11am and the clouds can start forming as early as 8. Being at the lake can be very cold - be sure to bring warm clothes. There is a teahouse there where you can get food and tea, but no accommodation except in an emergency. The teahouse may not open in low season, the staff come up from base camp each day, so check there before heading up.
It takes 1.5 hours to get back to base camp. Once down you could stay the night, or continue 3hrs back to Shree Kharka (or 2.45hrs back to just before Shree Kharka). The next day it is possible to walk directly to Yak Kharka via Old Khangasar so you do not have to backtrack all the way to Manang, there is a clear signpost at a split in the path just after Shree Karka. It takes approximately 4hrs to get from Shree Kharka to Yak Kharka.
Depending on where you end your trek, buses and taxis are available to take you to Pokhara, a great place on a lake to spend a few days unwinding and relaxing. Kathmandu is about a six hour bus ride from Pokhara, easily arranged once you're ready to leave the lakeside town.