Ride a speedboat from Koh Samui into the dramatic islands of Ang Thong National Marine Park for snorkeling, kayaking, and a hike to a panoramic viewpoint. This full-day trip combines easy water access with photo-ready limestone scenery and a visit to the striking Emerald Lake.
More ways to explore the area's outdoor wonders
The morning light hits the bay as the speedboat cuts through glassy water, and limestone islands rise ahead like islands of weathered stone daring you closer. Sea spray cools your face; beneath the hull, shallow reefs glint. By the time the boat slows near Ang Thong, the archipelago’s scale — 42 islands with sheer cliffs, sea caves and hidden lagoons — is immediate and physical.
Difficulty
moderate
Duration
7 hours
Fitness Level
Light-to-moderate fitness; you should be comfortable swimming short distances, climbing uneven steps and spending several hours active outdoors.
Wildlife
History
The park was established in 1980 to protect its karst islands and marine biodiversity; local fishing communities have long relied on these waters.
Conservation
Stay on marked routes, avoid touching coral, and use reef‑safe products; the park limits visitor numbers on sensitive sites to reduce impact.
Reserve your spot on the Koh Samui Angthong Marine Park Snorkeling Trip by Speedboat today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Pay park fees in cash
Ang Thong National Marine Park entrance fees are collected on arrival and are typically cash-only—bring small Thai baht notes.
Protect reef life
Use reef‑safe sunscreen and avoid touching coral while snorkeling to minimize environmental impact and skin irritation.
Plan for seasickness
The speedboat ride can be bumpy; take motion-sickness medicine beforehand if you’re prone to nausea and choose a seat with the least motion.
Time your hike
Hike to the viewpoint on Koh Wua Ta Lap during cooler morning or late afternoon hours to avoid heat and crowded photo stops.
Reef‑safe sunscreen
Protects skin while avoiding harm to corals in shallow snorkel areas.
summer
Snorkel mask (well‑fitted)
A leak‑free mask improves visibility and comfort during reef swims.
Light water shoes
Protects feet when entering rocky shorelines and on short beach hikes.
Dry bag (5–10L)
Keeps phone, cash and spare clothes dry during boat transfers and kayaking.