Independent guide with depth range, reef structure, and species context.
Hin Yai is a boat-accessed Gulf of Thailand pinnacle with rich marine life.
Hin Yai is a boat-accessed Gulf of Thailand pinnacle with rich marine life.
Use a local operator for boat logistics, tide timing, and marine-park access.
Hin Yai หินยาย is a boat-accessed offshore pinnacle in the Samae San and Pattaya area, known for its compact rock structure, reef edges, and the mix of macro life and schooling fish that gathers around the site. Divers come here when tide and weather windows line up, and the draw is a classic Gulf of Thailand pinnacle profile with coral, fish, and occasional larger visitors rather than a relaxed shore reef.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
5m - 30m
Depth Note
Reported working depths vary by guide, but the site is a submerged pinnacle with reef and macro zones rather than a flat reef.
Typical Conditions
Pinnacle and reef conditions with moderate current, good visibility on the best tide windows, and strong marine life around the rock.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Boat access, marine-park restrictions, and changing current make this an advanced dive that rewards careful planning.
Access Restrictions
Restricted-access marine-park waters and weather or tide windows determine whether the site is dived.
Legal Notes
Use a licensed local operator and follow marine-park rules.
Community notes to help plan your visit.
Scuba Diving
Pinnacle drift and macro diving with reef edges, overhangs, sea fans, and schooling fish.
Freediving
Not a freedive target; the site is better suited to advanced scuba and boat-based timing.
Snorkeling
Not a snorkel site; the attraction is the submerged pinnacle below the boat dive zone.
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
Independent guide with depth range, reef structure, and species context.
Operator page describing the pinnacle as mapped, special-trip only, and tide/weather dependent.
Dive-site directory with restricted-access and depth context.
Official tourism page for Ko Samae San area access and visitor activities.
Know this site? Improve Spot Details.

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Boat-access coral reef near Pattaya.

Controlled shallow reef for conservation and snorkel dives.