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A high-energy full-day speedboat from Koh Samui through 42 islands of limestone karsts, hidden lagoons and coral reefs. Expect snorkeling, sea kayaking, a short viewpoint hike and a chance to see the park’s emerald inland lake.
A high-energy full-day speedboat from Koh Samui through 42 islands of limestone karsts, hidden lagoons and coral reefs. Expect snorkeling, sea kayaking, a short viewpoint hike and a chance to see the park’s emerald inland lake.
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Operated by I Asia Thailand · Koh Samui, Surat Thani Province
The speedboat cuts a white wake across glassy Gulf water, spray tasting faintly of salt and lime; limestone cliffs rise like sculpted towers and the islands hang green and sudden against a blue sky. By mid-morning the boat slips into a sheltered cove where masks click and fins whisper as snorkelers fan out over shallow reefs, while sea breezes push kayaks toward hidden beaches.
moderate.
8 hours.
Suitable for travelers with average fitness; involves short steep hikes and light paddling.
The tour runs about eight hours and typically includes transfers from Koh Samui hotels, a buffet lunch, snorkeling gear, kayaks, life vests and an English-speaking guide.
Yes—snorkeling takes place in shallow bays with life vests and basic gear; guides monitor groups and point out safe areas.
Families are common; children should be comfortable in water and use life vests. Check operator age limits and supervision rules before booking.
Tours may be rescheduled or refunded if sea conditions are unsafe; operators monitor wind and swell, especially during monsoon months.
Ang Thong was designated a national marine park to protect its islands and marine ecosystems, reflecting Thailand’s effort to balance local marine livelihoods with conservation.
Boat traffic and reef damage are managed by park regulations—stick to marked trails, don’t touch coral, and use operators that follow park quotas and waste rules.
I Asia Thailand operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.
Book with I Asia Thailand
Book directly with I Asia Thailand for the best rates and real-time scheduling.
Reserve Now