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Things to do in Koh Samui

Koh Samui is Thailand's second-largest island, offering stunning beaches, lush jungle, and vibrant nightlife at a fraction of what you'd pay in the Maldives or Bali. With a mix of cheap street food, free temple visits, and affordable island-hopping, it delivers serious tropical luxury on a budget.

Family-friendlyGreat for first-timersDigital-nomad-friendly

Why go to Koh Samui

  • Big Buddha Temple (Wat Phra Yai)

    A golden 12-meter seated Buddha rises above the northern shoreline-utterly iconic and completely free to visit.

  • Ang Thong National Marine Park

    A jaw-dropping archipelago of 42 limestone islands with emerald lagoons, sea caves, and snorkeling reachable by day tour.

  • Chaweng Beach

    The island's liveliest stretch of white sand with turquoise water, beach bars, and buzzing nightlife all in one place.

  • Grandfather and Grandmother Rocks (Hin Ta Hin Yai)

    Bizarre and beloved coastal rock formations that are free to see and endlessly entertaining for the whole group.

  • Namuang Waterfall

    Twin jungle waterfalls deep in the island's interior where you can swim in natural pools-raw, beautiful, and barely touristy.

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Good to know in Koh Samui

  • Transit: Songthaews (shared red pickup trucks) are the cheapest way to get around at $1-2 per ride; agree on the price before you get in. Renting a scooter for $8-10/day gives you full freedom but drive cautiously-roads can be steep and wet.
  • Tipping: Not culturally mandatory but appreciated; rounding up the bill or leaving $0.50-1 at restaurants is generous and welcomed.
  • Tap water: Do NOT drink tap water in Koh Samui-the infrastructure is unreliable. Buy large refill water bottles at 7-Eleven for under $0.50 or use refill stations.
  • Free entry: Most temples including Big Buddha and Wat Plai Laem are free every day; Ang Thong Marine Park charges a ~$3 national park fee on top of tour costs, but there are no special free-entry days for parks.

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Things to do in Koh Samui: top sights, costs and free ideas | Koh Samui, Thailand