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Castaway Reef

Castaway Reef

Satun Province, Thailand

Depth
Depth Icon

15m

Visibility
Visibility Icon

15m - 45m

Entry
Boat Entry Icon

Boat

Experience Level

Beginner

Castaway Reef

Satun Province, Thailand

Castaway Reef
Depth
Depth Icon

15m

Visibility
Visibility Icon

15m - 45m

Entry
Boat Entry Icon

Boat

Experience Level

Beginner

About Castaway Reef
A long reef situated between Koh Kla and Koh Usen. This site is well known for its bizzare and unexpected marine life to be seen here. Drift along the shallow reef while exploring the beautiful coral displays as you go along. You will surely see some marine life you have never seen in your life before.

Castaway Reef Dive Info

Terrain & Features

Reef, Drift

Entry Type

Boat

Max Depth

15m

Visibility Range

15m – 45m

Experience Level

Beginner

Best Gas Mix

21%

O2
CNS Load (45 min)

11% at 13m / 36%

O2
Multi-Level Dive Planner
Photo gallery

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Marine Life
  • Box Fish
  • Demon Stingers
  • Groupers
  • Lion Fish
  • Moray Eels
  • Puffer Fish
  • Rays
  • Scorpion Fish
  • Turtles
  • Various
Weather Conditions

Weather information for Castaway Reef coming soon.

Dive Operators near Castaway Reef

We couldn’t find dive operators near “Castaway Reef”. You can browse all operators in Thailand here.

Location

Location details missing.

Dive Site Hazards

  • Hidden Depth Variations — Complex reef topography can conceal depth changes, leading to unintended profile variations.

  • Distraction from Marine Activity — High fish activity can distract divers and delay depth or gas awareness.

  • Rapid Surge Direction Changes — Surge near reef structures can reverse direction quickly, pushing divers sideways into unexpected areas.

  • Eddy Pull-Off Zones — Eddies behind structures can pull divers away from the main drift line.

  • Delayed Surface Pickup — Strong current can exceed surface tracking assumptions, delaying boat pickup.

  • Vertical Current Shear — Currents may vary by depth, causing vertical separation even when divers stay together.

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