Koh Kood operator overview for local boat diving.
Thailand · Trat and the Koh Chang Archipelago
Shallow boat-access reef with training zones and mild drift sections.
Shallow boat-access reef with training zones and mild drift sections.
Hin Ao Yai is normally scheduled through local Koh Kood dive-boat itineraries.
Hin Ao Yai is a shallow reef-and-rock site in the Koh Kood area, where easy training-style sections blend into short current-led drifts across fan-coral patches and fishier edges. Its profile stays forgiving for newer divers in calm water, but the more open sections feel livelier when water movement builds.
Site Conditions
Safety Notes
Use the calmer training sections for newer divers and treat any drift line as a separate plan with current checks before entry.
Access Restrictions
Hin Ao Yai is typically reached by operator boat rather than independent shore entry.
Community notes to help plan your visit.
Scuba Diving
Most dives stay shallow and use the easier sections for training or relaxed laps before moving to the more current-touched parts of the reef.
Species commonly reported at this site, with direct links into their wildlife guides.
Conservative baseline from public research. No community dives logged yet.
Last Updated
Research Sources
Koh Kood operator overview for local boat diving.

Shallow Koh Kood reef with rocky coral and easy boat access.

Flexible Trat reef with easy sections and drift potential.