Thailand · Koh Chang

HTMS Chang Wreck

Best time to dive

November to May; June to September

What you might see

  • BarracudaLikely
  • Eagle rayLikely
  • FrogfishLikely
  • Moray eelLikely
  • NudibranchLikely
  • Sea turtlePossible
  • SeahorseLikely
  • Whale sharkPossible

Sightings are seasonal probabilities, not promises - even in peak season nature does its own thing.

Certification & difficulty

Technical - advanced conditions (currents/depth); dive within your training.

Snorkelling

Not a snorkel site - Not possible - wreck's shallowest structure starts around 12 m

Safety notes

Overhead-environment risks inside cargo holds/superstructure (silt-out, entanglement, disorientation) - full interior penetration requires specific wreck certification; depth to 30 m limits no-decompression time; some current exposure on ascent/descent line

Permits & fees

May fall within Koh Rang/Mu Ko Chang marine park fee zone depending on operator's routing; NP diving fee ~400 THB/adult diver can apply - confirm with operator

Permits and operators change - confirm before booking.

Location

Nearest hub: Koh Chang (Bang Bao)

This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.