Rock Bar
Reggae, floor cushions and a seat on the actual rocks, with cold beer at prices that won't sting.
Plan your visit
- Hours
- Mon–Sat 11:00–02:00, Sun 11:00–00:00
- Price
- $$$$
- Budget
- Carry Your Passport or a Copy
- Clubs and some bars check IDs strictly, especially in Bangkok's Thonglor, RCA, and Sukhumvit areas. A photo of your passport info page on your phone usually works, but carrying a laminated photocopy is safer.
Why go, and how to do it well
Come here for the sunset and stay because you can't be bothered to move. This is a seaside bar in Maret built across several levels, with floor cushions, and if you're game, actual rocks to perch on above the water. Reggae plays throughout. Cannabis is available on site, and a fair chunk of the crowd is here for exactly that, so factor it into your evening if it's not your thing.
Drinks are cheap and cold, and the short food menu does the job. People single out the fried rice and the banana in coconut milk. One thing worth flagging: a few drinkers have found the staff coolly indifferent, the kind of service where nobody's fussing over whether you stay or go. Others describe the welcome as one of the warmest on the island. My read is that it depends who's on, and that if you want attentive table service you're in the wrong bar.
Written by Mac Kiley · Updated Sep 2026 · How we check places
Experience hints
Pair your visit. After Rock Bar, round out your day in Koh Samui with contrasting stops nearby.
Reviews from Google
The Rock Bar in Koh Samui offers a charming seaside experience with great hospitality and a relaxed atmosphere. The fried rice was well-prepared, and the banana with coconut milk made for a delightful local dessert. Combined with the scenic ocean views and calm setting, it’s an excellent spot to unwind and enjoy authentic Thai flavors. Highly recommended for travelers seeking a serene dining experience by the beach. Rastafari Vibes!!
Such a hidden gem in Koh Samui! 🌊 The Rock Bar has the perfect island vibe — laid-back, breezy, and right by the sea. The staff were super welcoming, and the food was simple yet delicious. The view of the sunset from here is truly magical. A must-visit if you’re looking to relax with good food and a peaceful atmosphere! 🌅✨
This place is simply amazing, a real go-to spot for all stoners out there. Very peaceful with a cool reggae-inspired design. They have weed available, the music is great, the service is friendly, and the prices are affordable. Definitely the place to chill tonight.
A sample of visitor reviews from Google. Read all 1,467 reviews on Google.
92 84310 126/92 Moo 3 Tambon Maret, Amphoe Ko Samui, Chang Wat Surat Thani 84310, Thailand
Open in Google MapsMore nightlife & bars nearby
All within 1.4 km away of Rock Bar.
Good Life Bar
A laid-back dive bar on Lamai Beach offering pool, weed cocktails, edibles, tattoos, and genuinely friendly vibes.
The Viper Room Rock Pub
A beloved rock and metal pub in Koh Samui's Maret area, known for welcoming hosts and a tight-knit community vibe.
Speed Lounge & Bar
Lamai's go-to live music bar, offering a relaxed yet festive atmosphere with a resident band that keeps crowds coming back.
The Third Day Beach Club
Beachfront bar and cafe on Lamai Beach offering sun beds, food, and drinks from morning to evening.
Tips for Visiting Nightlife & Bars
Know the Closing Times
Legal closing time is 2 AM for most venues, though enforcement varies. In Bangkok's designated entertainment zones (RCA, Silom Soi 2/4, Khao San), some clubs stay open until 4 AM. Islands tend to be more relaxed about hours.
Buy Bucket Drinks Cautiously
Island bucket drinks (mixed spirits in a small bucket) are cheap and fun but notoriously strong and inconsistent. Stick to one, stay hydrated, and never leave your drink unattended at beach parties.
Arrange Your Ride Home
Use Grab (ride-hailing app) to get home safely — taxis outside nightlife areas late at night often refuse meters. Set up the app before going out, and keep your phone charged.
Rock Bar: Frequently Asked Questions
Is Rock Bar worth visiting?
Rock Bar holds a 4.7★ rating from 1,467 Google reviews, placing it among the highest-rated nightlife & bars in Koh Samui.
What are the opening hours of Rock Bar?
Rock Bar is typically open 11:00-02:00 — see the full day-by-day schedule in the location info on this page. Hours can change on Thai public holidays, so check ahead for holiday visits.
How expensive is Rock Bar?
Rock Bar is budget-friendly (฿) relative to other nightlife & bars in Koh Samui.
When is the best time to visit Rock Bar?
The best months to visit Koh Samui are January – August, with the most reliable weather. Crowds peak in July – August & December — going early in the day usually means fewer people. Months to think twice about: October – December (Gulf Coast monsoon).
Where is Rock Bar located?
Rock Bar is at 92 84310 126/92 Moo 3 Tambon Maret, Amphoe Ko Samui, Chang Wat Surat Thani 84310, Thailand, in Koh Samui. Getting around Koh Samui: Songthaews (fixed routes around the ring road); Motorbike or scooter rental.
Also popular in Koh Samui
Elephant Jungle Sanctuary Samui (Soi 1 Branch)
Ethical elephant sanctuary in Maenam offering daily hands-on encounters with rescued elephants in a jungle setting.
Wat Phra Yai
A 12-metre gilded Buddha, free entry and 360-degree views over the bays: half an hour well spent.
Central Samui
Air-con when you need it, open-air wings when you don't, and a food court worth the trip on its own.
Hin Ta Hin Yai
Two rude-shaped rocks, free to visit, worth twenty minutes and a coconut ice cream on the way out.
Similar Nightlife & Bars across Thailand
Pattaya Walking Street
Loud, neon, adults-only after dark, and the seafood is easier before the 9pm crush.
Nana Plaza
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