Paddle through limestone tunnels, swim clear reefs and step into the Green Lagoon on a full-day Ang Thong tour from Koh Samui. This guided kayak and snorkel trip pairs easy paddling with time to explore dramatic island scenery and shallow coral gardens.
Paddle through limestone tunnels, swim clear reefs and step into the Green Lagoon on a full-day Ang Thong tour from Koh Samui. This guided kayak and snorkel trip pairs easy paddling with time to explore dramatic island scenery and shallow coral gardens.
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Operated by Explore Asia Tour · Koh Samui, Surat Thani Province
You push off the boat before sunrise and the limestone islands of Ang Thong rise like green cliffs from the Gulf—jagged karst faces, mangrove-fringed coves and the sudden quiet of a saltwater lagoon. The sit-on-top kayak tracks easily; water licks at your paddles as you thread natural tunnels and glide into the emerald hollow of the Green Lagoon.
moderate.
9 hours.
Suitable for travelers with basic aerobic fitness; able to paddle while seated for 30–60 minutes and get on/off a tender boat.
The full-day tour is about 9 hours; it typically includes hotel transfers, light breakfast, buffet lunch, kayak and snorkel gear, life vests, dry bags and an English-speaking guide.
Beginners are welcome and guides provide instruction, but children under 6 are not permitted to kayak within the park—check with the operator for boat-only options.
Calmer sea conditions and clearer water are most common from December through April; monsoon season brings rougher seas and tour adjustments or cancellations.
Common sightings include island monkeys, reef fish and occasionally dolphins; larger whales are rare but possible during migrations.
Declared a national marine park in 1980, Ang Thong conserves a cluster of limestone islands and their surrounding coral reefs that local communities have used for centuries.
Visitors are encouraged to use reef-safe sunscreen, avoid touching coral and follow guide instructions to minimize impacts; the park enforces access rules during sensitive seasons.
Explore Asia Tour operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.




Book with Explore Asia Tour
Book directly with Explore Asia Tour for the best rates and real-time scheduling.
Reserve Now