Koh Samui
Thailand

Koh Samui

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A laid-back Gulf of Thailand island of coconut palms and powder-white beaches, Koh Samui is the gateway to the emerald lagoons of Ang Thong Marine Park.

Things to do in Koh Samui

Tours in Koh Samui

200 tours · prices per person, book with partner

Koh Samui is the relaxed island escape of the Gulf of Thailand. Ringed by coconut palms and soft white-sand beaches, it moves at a gentler pace than Phuket, with luxury resorts, jungle waterfalls and the spectacular Ang Thong Marine Park just offshore. It's the perfect blend of beach indulgence and tropical adventure.

Top Things to Do in Koh Samui

The unmissable day trip is to Ang Thong National Marine Park — an archipelago of 42 jungle-clad islands, emerald lagoons and hidden beaches, best explored by boat and kayak. On the island, visit the golden Big Buddha and the cascading Na Muang waterfalls.

Relax on the lively Chaweng and quieter Lamai beaches, and watch the fire shows and night markets come alive after dark.

Tours Worth Booking

  • Ang Thong Marine Park boat and kayak tours
  • Island highlights and Big Buddha tours
  • Snorkelling trips to Koh Tao and Koh Nang Yuan
  • Jungle safari and waterfall tours

Best Time to Visit

Koh Samui has a slightly different climate to the Andaman coast: the driest, sunniest months are generally December to April and the June–August window, while October–November is the wettest. It's a good year-round escape with brief showers possible anytime.

Getting Around

There's no public bus network — shared songthaew trucks run along the main ring road, and taxis or scooters are the usual options. Boat tours and snorkelling trips include hotel pickups, and the island has its own airport for easy access.

Frequently Asked Questions about Koh Samui

What are the best tours in Koh Samui?
Top experiences include Ang Thong Marine Park boat and kayak tours, island highlights and Big Buddha tours, snorkelling trips to Koh Tao, and jungle safari waterfall tours.
How many days do you need in Koh Samui?
Three to four days lets you enjoy the beaches, see the island’s sights and take an Ang Thong or snorkelling day trip without rushing.
When is the best time to visit Koh Samui?
The driest months are generally December to April and June to August, while October–November is wettest. Koh Samui is a good year-round escape with brief showers possible anytime.
Is Ang Thong Marine Park worth visiting from Koh Samui?
Yes — its 42 islands, emerald lagoons and hidden beaches are stunning and only reachable by boat. A day tour with kayaking and snorkelling is one of the island’s top experiences.
Do Koh Samui tours offer free cancellation?
Most boat trips, marine park tours and excursions on Excurgo offer free cancellation up to 24 hours before the start, so you can book ahead and stay flexible.