Covering an area of 247 square kilometres, Ko Samui is the third largest island in Thailand. It is rich with natural resources, white sandy beaches, coral reefs and coconut trees. The dynamic tourism industry on Ko Samui has everything to offer to suit any taste, be that trekking in the wild, diving, snorkeling, windsurfing or even joining the nightlife entertainment.
Ko Samui is located some 84 kilometres east of the provincial capital. The island measures some 21 kilometres at its widest point, and 25 kilometres at its longest. There is a 51-kilometre ring and largely coastal road encircles the island.
Places of interest on Ko Samui include:
Na Thon - The island's major seafront settlement where shops, restaurants and tour agencies are concentrated.
Namtok Hin Lat – This waterfall is easily accessible by car. Some of the numerous tiny levels have a large basin for swimmers.
Namtok Na Mueang – A local road leads to the Na Mueang 1 Waterfall. A walk of about 30 minutes ends up at the more scenic Na Mueang 2 Waterfall.
Ban Lipa Yai – This village grows high quality fruits, including rambutan, durian, mangosteen and the famed langsat.
Old House – This Chinese-style house, aged almost 200 years, represents Samui’s cultural identity. Grandpa Si and Grandma Maen Hancharoen, the present owner, open the house to visitors.
Beaches - Samui's best beaches line the northern and eastern coasts, the most popular being Chaweng and Lamai, where generally attractive accommodation can be found. Other beaches are such as Hat Bo Phut, Hat Maenam and Hat Choeng Mon.
Other island attractions include coral beds at Laem Set and Thong Takhian; the phallic rock formations at the southern end of Lamai Bay; the nearby butterfly garden and aquarium; a snake farm; a monkey theatre at Bo Phut and a massive seated Buddha image on Fan isle.
Ko Taen (เกาะแตน)
Ko Taen is a small tranquil island south of Ko Samui, 20 minutes from Samui by boat. Designated trails allow visitors to understand the evergreen forest ecology, to reach mangrove forest, diving sites, and coral reefs, as well as to contact the local communities who make their living on coconuts and traditional fishing. Visitors can also join the fishermen’s trip to catch rays. To reach this island, 2 ferries leave Ao Thong Krut on Ko Samui daily at 10 a.m. and 4 p.m.
Mu Ko Ang Thong Marine National Park (อุทยานแห่งชาติหมู่เกาะอ่างทอง)
Juvenile Dusky Langur on Koh Wuatalab Ang Thong Marine Park ,Surat Thani Thailand
This comprises some 40 islands about 20 kilometres or two hours by boat northwest of Ko Samui. The park covers 250 square kilometres, of which approximately one fifth is land mass. The most attractive islands include Ko Wua Ta Lap, Ko Mae Ko, Ko Prayat, Ko Sam Sao, Ko Nai Put and Ko Wua Te. Most islands comprise limestone masses reaching heights of up to 400 metres, and fringed by beaches and rain forest.
An emerald saltwater lake known as Tha-le Nai (Inland Sea) on Ko Mae Ko is the park's major scenic attraction, and entails a mildly strenuous climb. The resultant views are well worth the effort. Another popular venue is Ko Sam Sao where an extensive span of coral reef and a huge rock arch offer scenic fascination.
The park office is on Ko Wua Ta Lap where bungalow-style accommodation is available. Visitors wishing to stay overnight should make advance bookings and specify whether meal services are required, either through the Ang Thong Marine National Park office, 145/1 Talatlang Road, Surat Thani. Tel: 0 7728 6025 or 0 7742 0225.
Getting There: A ferry departs from Ko Samui’s Na Thon pier daily at 8.30 a.m. and arrives at Mu Ko Ang Thong at 10.30 a.m. The fare is 550 baht. On return, the ferry departs from the Ang Thong National Park at 3 p.m. Call 0 7742 2262-3 for details. A one-day tour package to Mu Ko Ang Thong is also organised by travel agents on Ko Samui.
Sailing is popular in Samui being led by the success of the Ko Samui Regatta  and the continued popularity of the day crusies and sunset cruises aboard the 52 foot sailing catamaran Kia Ora  or the fully equipped liveaboard sailing catamaran Nautiness II for overnight tours . The major hindrance to sailing in Ko Samui is the lack of a marina to provide safe mooring, the support infrastructure and services. There have been many rumours about marina construction being imminent but nothing has yet been done. So when you get to Samui, expect to find it hard to locate a suitable provider and also expect to either clamber over rickety wooden jetties or be ferried out on the tender dinghy.
On Chaweng beach there are dinghys, lasers and catamarans available for day-rental. Be prepared to pay from 500 baht/hour. The wind close to the shore is tricky though, often circling the mountains and coming in from two directions simultanuosly.
Santiburi Samui Country Club12/15, Mu 4, Mae Nam, Tel: 0 7742 1700-8 Fax: 0 7742 1709, boasts the only 18 hole golf course on the island. Located inland from Mae Nam, the neighbouring town to Bophut, the challenging mountain-side and high valley fairways offer stunning views of the bay area and distant Ko Pha Ngan. Golf carts are compulsory, to prevent the exhaustion of players otherwise following the steeply rising and falling fairways. Large greens offer some compensation to players distracted by the fabulous views and lush tropical setting. The clubhouse includes locker rooms, dining, conferencing rooms as well as a driving range, practice green and shop.
Samui Golf Club and Driving Range Samui Ring Road, Chaweng North 123/1, Mu 1, Tambon Bo Phut Suratthani
You can visit the Samui shooting range and fire various 9mm and revolver pistols and even the famous AK-47. Turn up and shoot - prices are quite steep around 1000 baht for a magazine of ammo but it does make for a memorable experience and is suitable for small groups.
Situated on the Reggae Street side of Chaweng lake. Samui Bungy offers a free pick up service from your hotel. Soi Reggae, ChawengBeach. Telephone: 07 741- 425-2
Samui with its lush forests offers the ideal spot to go for bird watching. The wilderness of the area has made it a nesting ground for several rare species of birds.
Tiger Zoo and Tropical Bird Show
South of Hua Thanon
Trekking & Elephant Trekking
Samui is a great place for trekking to explore the diversity of the landscape and the tropically lush forests either on foot or by elephant. This activity has become popular especially with the younger crowds. There is a nice natural pool at the top of the Na Muang waterfall 2. It's about 30 minutes steep hike from the point where the road ends. There are also some elephant ride businesses, that can take you to the bottom of the waterfall.
Snooker & Pool
There are snooker clubs at the main beaches in Thailand and they are popular with the local Thais. More popular with the western tourists is pool which can easily be found at the island’s bars. At most bars, pool can be played for free.
On Samui, some companies conduct various workshops and courses on windsurfing.
Koh Samui Canopy Adventures arrange canopy through the forest. They are located Bophut Beach and can be contacted at 077-414-1501
Lovers of fishing will adore the idea of going fishing off Samui and they won’t be disappointed. The majority of the fishing tours leave from the south-west corner of Ko Tong Krut.
Horse on Samui are of a European standard, they are calm, patient and well-trained. For package deals and more information, telephone: 09-972-4241. Route 4169, near Tesco Lotus, Chaweng.
This exciting new and trendy activity has finally reached Samui and the Ko Samui Kite Center based at the Samui Orchid Resort in Laem Set offers a complete range of courses from beginners to advance. The ideal time of the year for this activity is from November to March. The center can be contacted at 077-424-017-501.
Is organized in the hills above Maenam Beach. There is a great selection of guns to choose from, take your pick of an M16 or a Kalashnikov.
Buffalo Fighting Festival One of the most famed festivals coming out of Samui is its Buffalo Fighting Festival which is held on special occasions such as New Years Day and Songkran. Unlike Spanish Bullfighting, where the bulls get killed while fighting sword-wielding men, Buffalo Fighting Festival, Ko Samui is fairly harmless. The fighting season varies according to some ancient customs and ceremonies. The buffalos are beautifully decorated with ribbons and gold-painted leaves. Before the contest which lasts just two rounds, monks spray them with holy water.
Bowling Championship This is an annual bowling event held in May every year.
Avis Samui Tennis Open The annual amateur tennis tournament held in July.
The Fisherman's Village Festival This five-day long festival is celebrated with great fun and lots of music and food. The music is usually played by well-known artists and the amount of food (and quality of it) dished up is just amazing. A number of food tents sell a wide range of inexpensive and tasty cuisine provided by many local hotels.
Triathlon Event There currently are NO Triathlon events on Ko Samui. Nearby sister island Ko Phangan has an International distance Triathlon and Duathlon in March, with the second annual scheduled for 2010.
Island Safari Co.,Ltd. 2/3 Mu 6, Samui Ring Road, Tambon Bo Phut, Tel: 0 7723 0567, 0 7723 0709 Fax: 0 77422559, E-mail: firstname.lastname@example.org, 
Namuang Safari Park 13/2 Mu 2, Samui Ring Road, Tambon Namuang, Tel: 0 7742 4098, 0 81849 0101
Samui Institute of Thai Culinary Arts, Tel: 0 7741 3172 provides basic skills sufficient to prepare a Thai meal in your own home, or even training to professional standards. Some hotels that have their own in-house Thai restaurant offer cooking classes to their customers. Contact Central Samui Beach Resort Tel: 0 2230 5000, Imperial Samui Tel: 0 7742 2020-36, Poppies Samui Tel: 0 7742 2389; Santiburi Dusit Resort Tel: 0 7742 5031 for details
SITCA (Samui Institute of Thai Culinary Arts) 46/4 Mu 3, Soi Colibri, Tambon Bo Phut, Tel: 0 7741 3172, 08 1970 7497 Fax: 0 7741 3434, E-mail: email@example.com, 
The Blue Banana Thai Cooking Classes 2 Mu 4 , Tambon Bo Phut, Tel. 0 7724 5080, 
Thai Cooking Class ( Santiburi Dusit Resort ) 12/12 Mu 1, Samui Ring Road, Tambon Mae Nam, Tel: 0 7742 5031–38 Fax: 0 7742 50410, E-mail: Santiburi@dusit.com, 
Muay Thai (Thai Boxing)
Samui has a few gyms where wanna-be kick boxers can learn this unique martial art which is embedded in culture and tradition.
For those suffering from a bugging, moody, monkey-like or impatient mind, they can be treated with the help of meditation. If practicing at a temple isn’t your cup-of-tea, then never mind there are monthly meditation courses at the Samudra Retreat lead by an expert meditation master monk.
The Samudra Retreat Samui: 24/73, Moo 5, Bo Phut, Koh Samui, Suratthani, 84320, Thailand. Tel: (6677) 428-100 Fax: (6677) 428-133
For no course fee meditation programs, there are 3 days, 5 days courses at Dipabhavan Meditation Center (Thai: ทีปภาวันธรรมสถาน) lead by Ajahn Poh, the current abbot of Suan Mokkh. Therefore, the teachings in Dipabhavan is exactly the same as Suan Mokkh International Hermitage, Suratthani.
Dipabhavan Meditation Center Samui: Tambon Maret, Koh Samui, Suratthani, THAILAND 84310. Tel: (66)89 593 0121,  (No course fee.)
Absolute Sanctuary Yoga Retreats & Teacher Trainings. Conducts ongoing yoga holidays suitable for beginners to learn about yoga and include daily classes, meals & massages. The resort conducts on an ongoing basis yoga teacher trainings & workshops conducted by world renowned teachers for avid yogis & aspiring teachers to learn from & interact with each other. Phone +66 (0) 77 601190. 
Kamalaya Personal Yoga Synergy Retreats. These private yoga retreats are customised to suit your yoga experience. Personal one-on-one instruction, including postures, breathing practice and mediation, are supported by Ayurveda and wellness treatments, healthy cuisine and an inspiring setting. Phone +66 (0) 77 429800.