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Koh Chang operator page with site selection and trip-planning context.
Dive Spot Guide•
HTMS Chang Wreck
Boat wreck dive with big fish schools and penetration potential.
Local operator required
Usually visited by boat with a local Koh Chang dive center.
HTMS Chang Wreck is a large artificial reef and boat dive near Koh Chang with a deep hull, penetration opportunities, and strong fish life for trained divers.
About HTMS Chang Wreck
This is a purpose-sunk shipwreck and is described as the largest recreational wreck dive in the Gulf of Thailand. The wreck is about 100 m long and sits at roughly 30 m. It is popular for wreck diving and is considered suitable for penetration, with large schools of fish commonly reported around the structure.
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Research Estimate At HTMS Chang Wreck
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 15m
AccessSimple entry
CoralMixed health
Aquatic LifeGreat variety
FacilitiesGood facilities
CurrentLight current
Where Is HTMS Chang Wreck?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
HTMS Chang Wreck Planning Details
Depth range, seasonality, and planning context.
Reported Depth
30m+
Depth Note
The wreck is stated to sit at around 30 m depth.
Best Season
November to May
Typical Conditions
Calmer seas and clearer water in the main season; the wreck is usually dived as a boat trip with mild currents.
Safety & Access At HTMS Chang Wreck
Hazards, restrictions, and access requirements.
Key Hazards
Overhead environment
Safety Notes
Penetration dives add overhead risk and require appropriate training, equipment, and planning.
Access Restrictions
Boat access; wreck penetration requires proper training, gear, and conservative gas planning.
Legal Notes
Follow local marine and boating rules and respect penetration limits on the wreck.
Local Intel For HTMS Chang Wreck
Community notes to help plan your visit.
Scuba Diving
A recreational wreck dive around 30 m with potential for wreck penetration.
Freediving
Not a freedive-first site; the wreck sits well beyond casual breath-hold depth.
Snorkeling
Occasional snorkel visits can happen, but the main attraction is below recreational breath-hold depth.
Wildlife at HTMS Chang Wreck
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At HTMS Chang Wreck
Community dive logs and visit reports for this site.
Dive Spot Log Averages At HTMS Chang Wreck
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility15m
Activity
No dive activity logged yet.
