TOP 10 Gyms on Koh Samui
Whether it's a weights room with a sea view or Muay Thai training with a WMC-affiliated camp, Koh Samui has more gyms than most visitors expect. We fully rechecked our original top 10 — two gyms from the old list could no longer be reliably confirmed as open in 2026 and have been replaced with verified, currently operating alternatives. Prices and opening hours on Koh Samui tend to change often, so each entry links to a source where you can look up the current status.
The top 10 gyms on Koh Samui
10. Ultra Bodies (Lamai)
The two-story, air-conditioned "Ultra Bodies Samui" sits centrally on Lamai Beach Road and is equipped with treadmills, dumbbells and strength machines. There's also a free towel service plus wheatgrass, electrolyte and protein shakes available at reception.
According to current visitor reviews, a day pass costs around 250 THB — check the Google listing for the current rate:
Open Ultra Bodies on Google Maps
9. Star Gym & Fitness Center (Chaweng)
The former "Star Gym Fitness" now trades as "Star Gym & Fitness Center" on Chaweng Beach Road. It offers a large range of dumbbells, strength machines and specialised stations such as a Smith machine, cable stations and a leg press, plus cardio kit including treadmills, ellipticals and spin bikes.
Open daily 6:30am-9:30pm, day pass approx. 250 THB, monthly pass up to approx. 7,800 THB — current prices and offers on the official site:
8. Samui Fitness Lab (Lamai)
This spot used to be "Lamai Beach Gym", which we could no longer find under that name in 2026. As a currently-operating replacement we've included Samui Fitness Lab in Lamai, opened in 2025: a CrossFit and Hyrox affiliate studio built around functional training rather than a classic weights room, set up open and bright.
Day pass approx. 400 THB, 4-week package approx. 5,700 THB (per the checked source) — current prices on the official site:
7. Success Gym (Chaweng)
"Success Gym" remains one of the largest gyms in central Chaweng, with over 100 machines and a wide class schedule ranging from Muay Thai to yoga to group training. After your workout, sauna and massage services plus healthy food and drinks help you recover.
Open daily 6am-11pm — check the current status in the Google listing:
Open Success Gym on Google Maps
6. Koh Fit (Lamai)
"Koh Fit" is a multi-story fitness retreat in Lamai with bootcamps, a weight-loss programme and its own Muay Thai programme aimed at both beginners and aspiring competitors. Since 2025 there's also an "Essential Koh Fit Day Pass" for anyone who just wants a single day of training.
Current prices and packages on the official site:
5. Lamai Muay Thai
The former "Super Muscles" could no longer be reliably confirmed as an active gym in 2026, so we've replaced it with a camp that has a long, well-documented history: Lamai Muay Thai has trained fighters since 1998 under the WMC (World Muaythai Council) and also takes tourists with no prior experience for single sessions or multi-day packages.
Drop-in training reportedly costs around 500-700 THB, a weekly pass around 3,500-4,500 THB — check on site or online, since prices change often:
Open Lamai Muay Thai on Google Maps
4. Elite Gym and Fitness (Chaweng)
"Elite Gym and Fitness" in Chaweng is one of the island's larger studios at 1,000 sqm, with a broad mix of Thais, expats and tourists, a large selection of weights, strength and cardio equipment, and protein shakes after your workout. The former second location in Nathon has since permanently closed — only the Chaweng location remains.
Current status on the official site:
3. New World's Gym Samui (Chaweng)
The former "World's Gym" now trades as "New World's Gym Samui" after a refurbishment — same location, keeping the classic bodybuilding tradition of an old-school gym for anyone who wants to stay fit, or get fit, while on holiday.
Open daily 7am-9pm — check the current status in the Google listing:
Open New World's Gym Samui on Google Maps
2. Classic Gym & Fitness (Chaweng)
"Classic Gym & Fitness" is a professional gym spread over three floors and more than 1,000 sqm in the heart of Chaweng, with the usual strength and cardio machines, plenty of free weights, on-site personal training and its own kids' play area.
Open daily 7am-10pm — check the current status in the Google listing:
Open Classic Gym & Fitness on Google Maps
1. Sky Gym — our number one
Our number one pick is still "Sky Gym"! What makes it special: the view over the sea and the islands from the top floor of a building between Lamai and Chaweng Noi, directly opposite the Vikasa Retreat. Because the gym is built open at the top, there's always a fresh breeze — deliberately no air conditioning here. The studio is now under new ownership, but still active.
Open Mon-Fri 6am-9:30pm, Sat 7am-8pm, Sun 10am-5pm (per the checked source) — check the current status in the Google listing:
Frequently asked questions
Which gyms on Koh Samui are still open in 2026?
Eight of the ten gyms from our original list are verifiably still running in 2026, some under a new name ("World's Gym" is now "New World's Gym Samui", "Star Gym Fitness" is now "Star Gym & Fitness Center"). Two gyms could no longer be found under their old name and have been replaced with verified, currently active alternatives.
How much does a day pass cost at a gym on Koh Samui?
Depending on the gym, day passes generally fall somewhere between about 250 and 400 THB. Exact prices change often, so we link to a source for each gym where you can check the current rate yourself.
Is there a gym on Koh Samui with Muay Thai training for tourists?
Yes. Lamai Muay Thai has trained fighters since 1998 under the WMC and also takes beginners for single sessions or multi-day packages. Koh Fit in Lamai also runs its own Muay Thai programme.
Which gym on Koh Samui has the best sea view?
Sky Gym, between Lamai and Chaweng Noi: it sits on the top floor of a building, is deliberately built open-air, and offers an unobstructed view over the sea and the nearby islands.
For the best way to get to these gyms, see our article on getting around Koh Samui. To put the overall cost of a trip into perspective, see the cost of a holiday on Koh Samui, and for more active ideas browse our Top 10 activities on Koh Samui.
Keep reading
Pink Dolphins Near Khanom: A Trip From Koh Samui
Pink dolphins near Khanom: where they live, how rare they are, why they turn pink, the best time to go, and how a trip from Koh Samui works.
ATV and Quad Tours on Koh Samui: What to Expect Before You Book
ATV and quad tours on Koh Samui: how the ride works, age rules, what to wear, safety, rainy-season mud and the buggy alternative.
Jet Ski on Koh Samui: Cost, Rules and Tips
What jet skiing on Koh Samui costs, how to avoid damage-claim scams at beach rentals, and why a guided jet ski safari is often the safer choice.