Borjomi (ბორჯომი bohr-joh-mee) is a town in central Georgia as well as the name of a natural reserve and of the famous volcanic salty spring water. The source of this spring water lies in the Borjomi gorge.
From Batumi it is possible to take a train to Khashuri. Once in Khashuri you have to travel down the road a bit to a market on the edge of town, where you can find marshrutkas going to Borjomi. The marshrutka ride from Khashuri to Borjomi is about 20 minutes.
Visit the city park. Stretched along the Borjomula river, the city park contains the source of Borjomi mineral water. The first part of the park contains park amusements and cafes. The rear part of the park is a great for a walk. If you continue past the asphalted part for another 2.5 km, you will reach a hot springs that was turned into a concrete pool during Soviet days. While the pool itself is not a beauty, the outstanding beauty of the nature around it will definitely make up for this. Near the entrance there is an option to use cable car to get up to plateau. The view over Borjomi is fantastic. edit
Visit the Borjomi Kharagauli national park. The largest national park in Georgia  by going to the administration of the office, which is a bit to the west of Borjomi (23 Meskheti str.), and get a free access permission and a map of the area with all the routes and shelters as well. If you want to take a hike in the national park, get enough supplies, water, and some basic sleeping gear with you, as the cabins are very basic. It also takes a one day hike from Borjomi to Qvabiskhevi (or the other way around) and then you can hitchhike or take a local bus or taxi back to Borjomi. It is also possible to take multiple day hikes. That way you get to go to the higher parts (up to 2600 meters). edit
The Green Monastery - An ancient monastery just outside of town. Walk, hitchhike, or bargain with a taxi to take you there (it isn't far, 10 laris should do it for a return trip). A short hike through the woods will bring you to the monastery. Very small, but beautiful.
Taverna: Restaurant near the entrance of the main bridge (Silamazis Khidi) and the small park (patara parki), Taverna has a wide selection of traditional Georgian dishes. Taverna enjoys a reputation for its mushrooms cooked in clayware.
Imereti: Nice restaurant near the train station of Borjomi. When you exit the station, turn left and continue to walk the street until its very end. On the left you will find this restaurant which offers shashlik and a number of tasty Georgian dishes.
Hotel Texel, 5 Orbeliani Street, ☎ (+995)599 50 04 21, (+995)367 22 30 44. checkin: 24 hours; checkout: 11 am. Hotel Texel is propably one of the best budget options in Borjomi. Its owner is very hospitable and used to be the first post-Soviet mayor of the city. Prepare to be invited for endless amounts of tasty self-made wine along with interesting stories from his official career. The hotel is an unmarked house and in close proximity to the now defunct Hotel Tbilisi. Asking for 'Avtandil Gongladze' or 'pervy me-er' (first mayor) should get you there. The rooms with two beds are completely new and a bed costs you 40 GEL. If you travel alone, you will still only pay 40 GEL and have the room for yourself. Very good breakfast prepared by Avtandil's wife is available for 5 GEL. Russian and Georgian is spoken. edit
Hotel Borjomis Kheoba, . 28 comfortable rooms, mineral water spas, outdoor swimming pool, bar and restaurant. Prices from 65 to 250 Georgian lari including all meals.
Marina's Guesthouse: Cozy guesthouse near the center of town and a popular waystation for expats, backpackers and tourists. Marina's son and daughter both speak fluent English.
Hotel Borjomi. Elegant, wooden Tsarist-era house located in central Borjomi, next to the Museum of Local Lore. Bed and breakfast available. Prices start from 70 Georgian lari. Russian spoken.
Leo's homestay |Guesthouse, 18 Pirosmani, . 18 Pirosmani (turn right onto the street after the Borjomi museum of local lore - the home is on the left side of the street.), ☎ (+995)574861516 / (+995)593981595 (+995)551414422. Leo and his mother have 4 rooms that can accomodate 10-11 or so people. The price for the night is 25 GEL a person, and for 5 GEL more Leo's mother will make breakfast, which often features a substantial number of pancakes. Leo is also a great source of information about Borjomi and the surrounding area, and regularly arranges excursions for his guests, such as trips to Vardzia and horseback riding in the Borjomi-Kharagauli national park. He also speaks excellent English and Russian. firstname.lastname@example.org .price. edit
The Khutsishvili Guesthouse, Village Kvabiskhevi, ☎ +995 577 53 84 17. edit The house is located 18 km from Borjomi. The two-storey house is surrounded by a well-maintained yard. On the first floor, there is a living room with a fireplace and shared bathroom. On the second floor, there is a sitting room, two double bedrooms and a kitchen. The family has a small farm and offers natural products to tourists.
Inga Sergia homestay, Rustaveli n123 (Oposite main bridge which is near tourist information), ☎ 568355551. Nice homestay in Soviet time apartment, a trip to past. Host is a little bit crazy old lady, but she is very nice, speaks only Russian. Sheets are clean, hot shower.20. edit
It is possible to reach Tbilisi, using the train from railway station #1 (4.5 hours, 2 GEL) or minibus (2 hours, 8 GEL). Trains leave Borjomi every day at 7:00 and 16:40. There is an abundance of minibuses to Tbilisi, pretty much one leaving every hour during day time.
The sightseeing train  to Bakuriani ski resort (1 or 2 gel, 38 km) which leaves from railway station #2 is nice for sightseeing and takes 2 hours. It leaves Borjomi for Bakuriani every day at 7:15 and 10:55. Trains in the opposite direction leave Bakuriani at 10:00 and 14:15.