Twelve kilometres south of Chaweng, Lamai is Samui’s second-biggest tourist hub. I would pick it when you want a proper beach town without the noise or the bill of the main strip. The commercial centre is smaller, prices are generally lower, and the night exists without taking over the whole stay.
The short version
- Best for: mid-budget travellers, couples, solo travellers, anyone wanting Chaweng’s amenities at lower cost
- Skip if: you need the main party scene or a very long unbroken beach
- Beach: 4 km, firm sand, rockier and shallower at the south end
- Hin Ta & Hin Yai rocks: free, at the south end of the beach, worth 20 minutes
- Night market: every Sunday on the main road, roughly 5 pm–10 pm
- Nightlife: a few bars and clubs, quiet by Chaweng standards
- From Chaweng: 15–20 min by songthaew or taxi
The beach
Lamai Beach faces east, same as Chaweng, so the swell calendar is similar: calmest December through April, rougher in October and November. The northern and middle sections are the swim: good sand, clear water in the dry season. The southern end gets rockier as you approach the Hin Ta and Hin Yai promontory. At low tide you can walk out over shallow reef. Snorkelling here is nothing special.

The beach is narrower than Chaweng and the water is slightly less vivid, and you get more space. If a morning run is the plan, 4 km is a there-and-back rather than Chaweng’s long straight. I have not run it. That is just the length on this page.
Hin Ta & Hin Yai
The two rock formations at the south end of the beach, Hin Ta (grandfather rock) and Hin Yai (grandmother rock), are free to visit and take about twenty minutes. They are the most visited attraction in the area. The sea has shaped the granite into formations Thais associate with male and female genitalia, with a legend about an elderly couple who drowned and turned to stone. It is worth a look even if you skip the folklore. Arrive in the late afternoon to miss the tour groups and catch better light. Small food stalls and souvenir shops line the entrance path.
Nightlife and food
Lamai has a bar strip in the centre of town: bars and a few clubs, livelier on weekends, closing earlier than Chaweng’s 2–3 am. There are some go-go bars along the main drag. They are easy to walk past if they are not for you.
Food works across budgets. Cheap Thai restaurants sit near the market, mid-range seafood is on the beach road, and there is a reasonable international spread. The Koh Samui food guide covers the island. Lamai is well represented.
The Sunday night market
Every Sunday the main road through central Lamai closes to traffic and becomes a walking street market from around 5 pm to 10 pm. Stalls sell grilled food, som tam, pad thai, fresh fruit, and the usual souvenirs. Prices are low: a full meal from ฿30–80. Go if you are already in Lamai on a Sunday. I would not cross the island just for it.
Getting around
Lamai sits on the main ring road, so songthaews pass regularly, heading north to Chaweng for ฿40–60. Scooter rental in town runs around ฿200–300 per day. For the full picture, see getting around Koh Samui.
Staying here
Lamai gives better value than Chaweng at the mid-range: equivalent quality for less money, mostly. Options run from basic guesthouses to solid 3–4 star resorts around the beach road. Beach Republic, at the north end, is the pool-villa and beach-café stay. Agoda listed it 30 m from the beach on 25 October 2026. Browse /hotels/ for current prices. For the island-wide split, where to stay in Koh Samui lays out the trade-offs.
If you are travelling with children, the central bar strip at night is not ideal. The beach and the rocks work fine. See Koh Samui with kids for family days in this part of the island.
For beaches across the island, see best beaches in Koh Samui. Nearby: Chaweng if you want more night, or Bophut and Maenam for a quieter north-coast base.