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Things to Do in Koh Samui
Real tours and attractions in Koh Samui — live ratings, prices, and booking links, not a generic list.
Top tours & attractions
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Angthong National Marine Park VIP Small Group Tour
★ 5.0(885 reviews)· 8h 30m
From €158
Semi-Private yacht adventure to Ang Thong Park’s hidden treasures
★ 4.9(897 reviews)· 10 hrs
From €112
Full Day Ang Thong Islands Luxury Small Group Tour
★ 4.9(341 reviews)· 7 hrs
From €117
Zipline by Hawk Adventure The Biggest & Longest in Koh Samui
★ 4.7(64 reviews)· 3 hrs
From €51
Pig Island Tour by Speedboat with Snorkeling
★ 4.7(735 reviews)· 6 hrs
From €49
Angthong National Marine Park 42 Island Speed Boat From Koh Samui
★ 4.6(17 reviews)· 8 hrs
From €56
Tree Bridge Cafe And Zipline - Jungle Flight Adventure in Koh Samui
★ 4.6(241 reviews)· 2 hrs
From €46
Ang Thong National Marine Park Speedboat from Koh Samui
★ 4.5(147 reviews)· 9 hrs
From €56
Real listings from Viator, including live ratings and prices — clicking through takes you to book directly.
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Best time to visit Koh Samui
Real weather data, based on the last 2 years.
January
26° / 22°C
April
30° / 24°C
Good to know
Koh Samui is in Thailand. The local currency is the Thai baht (฿).
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FAQs — Things to do in Koh Samui
Based on real current ratings, "Angthong National Marine Park VIP Small Group Tour" is the highest-rated option we found (5.0 stars) — see the full list above, sorted by real rating.