Best Islands in Koh Samui
2 places found in Koh Samui
Koh Samui sits at the heart of the Gulf of Thailand's island triangle — with Koh Phangan and Koh Tao within easy reach by ferry. Ang Thong National Marine Park, a breathtaking archipelago of 42 islands northwest of Samui, is the region's most spectacular day trip, offering kayaking through emerald lagoons and panoramic viewpoints.
Koh Phangan, just 30 minutes by speedboat, offers everything from the legendary Full Moon Party on Haad Rin to serene yoga retreats on the northern coast. Koh Tao, 1.5–2 hours further, is one of the cheapest places in the world for scuba diving certification. Closer to home, the tiny island of Koh Tan offers a half-day snorkelling trip from Samui's southern coast.
Where to stay in Koh Samui
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Ko Pha Ngan
A laid-back Thai island of white-sand beaches, jungle interior, and the legendary monthly Full Moon Party.
Ko Samui
A sizable Thai island offering stunning beaches, lush rainforest, vibrant nightlife, and cultural landmarks.
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Frequently Asked Questions
What islands can I visit from Koh Samui?
Ang Thong National Marine Park (day trip, ~1,800 THB), Koh Phangan (30 min by speedboat), Koh Tao (1.5-2 hours by ferry, great for diving), and Koh Tan (half-day snorkelling trip from Thong Krut pier). All are easily booked from Samui.
Is the Full Moon Party on Koh Phangan worth visiting?
If you enjoy massive beach parties, it's iconic — thousands of people, fire shows, neon paint. If not, visit Koh Phangan on a non-party week for beautiful beaches and yoga retreats. The party happens monthly on the full moon at Haad Rin beach.
When is Ang Thong National Marine Park open?
Open most of the year, but typically closes November to late December due to monsoon seas. The best conditions are February to October. Day trips include kayaking, snorkelling, and hiking to a stunning viewpoint. Book through any Samui tour agency.