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Hard coral reef geometry and normal-day current description.
Dive Spot Guide•
Koh Tachai Reef
Boat-access reef with hard coral, sand, and shark potential.
Permanently closedAs of Oct 15, 2016
Koh Tachai has been closed indefinitely to visitors; confirm current park access before planning any dive.
Local operator required
Access is boat-based and operator-dependent, with weather and park status determining whether trips run.
A north Andaman reef that mixes coral slope, sandy bottom, and regular big-fish potential, but access depends on park status and weather windows.
About Koh Tachai Reef
Koh Tachai Reef is a boat-accessed north Andaman reef with a sloping hard-coral profile, sandy patches, and a reputation for leopard sharks, barracuda, and other reef life when conditions line up.
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Research Estimate At Koh Tachai Reef
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 15m
AccessChallenging entry effort
CoralHealthy coral
Aquatic LifeGreat variety
FacilitiesLimited facilities
CurrentModerate current
Where Is Koh Tachai Reef?
Community sourced coordinates.
Koh Tachai Reef Planning Details
Depth range, seasonality, and planning context.
Reported Depth
5m - 30m
Depth Note
The reef slopes from about 5–10 m down to a sandy bottom around 20–30 m.
Best Season
November to April
Typical Conditions
Boat-access reef, moderate current, decent visibility, and occasional shark and big-fish sightings when the site is open.
Safety & Access At Koh Tachai Reef
Site conditions, restrictions, and access requirements.
Site Conditions
Restricted accessStrong current
Safety Notes
Confirm park access before departure, keep close buoyancy over the sand slope, and be ready for current changes between sheltered and exposed sections.
Access Restrictions
Public access to Koh Tachai has been closed indefinitely, so current park permission must be confirmed before any trip is sold or run.
Legal Notes
Treat this as a park-regulated site with indefinite closure status unless current authority guidance says otherwise.
Local Intel For Koh Tachai Reef
Community notes to help plan your visit.
Scuba Diving
Best as guided scuba diving on a sloping reef with hard coral and sandy patches. Expect a relaxed profile when conditions are mild, but stay current-aware.
Wildlife at Koh Tachai Reef
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Koh Tachai Reef
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Koh Tachai Reef
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility15m
Activity
No dive activity logged yet.
