Boat-trip logistics, tour support and multi-activity park planning from nearby islands.
Gulf island park with shallow reefs, snorkeling and rays.
Gulf island park with shallow reefs, snorkeling and rays.
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Guided boat tours are the normal way to move between sites and manage park logistics.
Mu Koh Angthong National Marine Park is a limestone-island park with shallow reefs, sheltered bays and broad marine-life variety. It works as a boat-based snorkel and scuba area rather than a single wreck or wall, with the best days coming when calm weather, cleaner water and manageable current line up.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
8m - 16m
Depth Note
The better-known dive areas in the park are shallow reef sites, commonly around 8-16 m.
Best Season
February to October, with March and April usually giving the clearest water.
Typical Conditions
Shallow reef park with limestone islands, variable visibility and occasional stronger current.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Pick calm-weather days and follow the guide between sites. Some park sites are sheltered, but currents can strengthen quickly.
Access Restrictions
Boat access only; use a guided park tour and plan for park fees and island-to-island logistics.
Legal Notes
Marine park fees and conservation rules apply.
Community notes to help plan your visit.
Scuba Diving
Shallow reef diving around the park’s better-known islands, with the clearest results on calm days.
Freediving
Good freedive and snorkel use in sheltered bays and beach areas when the water is clear.
Snorkeling
Snorkeling is a core activity, with sheltered sites and kayak-friendly bays built into the park itinerary.
Species commonly reported at this site, with direct links into their wildlife guides.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Boat-trip logistics, tour support and multi-activity park planning from nearby islands.
Species list, snorkeling/kayak context and dive-site variety across the park.
Shallow reef and coral diversity, visibility range and current baseline for Ang Thong diving.
42-island park overview, shallow coral gardens, visibility limitations and best-season notes.
Know this site? Improve Spot Details.

Koh Tao pinnacle reef with coral-covered ridges and big fish.

Offshore Koh Tao pinnacle dive with current and big-fish action.

Shallow Koh Tao reef with easy access and gentle conditions.

Chalok Bay is Koh Tao’s sheltered south-side training bay.

Shallow Koh Tao muck site with artificial reef structures.

Sheltered Koh Tao bay with easy shore snorkeling and calm reef life.