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Chek Isa

Chek Isa

Terengganu, Malaysia

Depth
Depth Icon

20m

Visibility
Visibility Icon

6m - 18m

Entry
Boat Entry Icon

Boat

Experience Level

Beginner

About Chek Isa
Chek Isa consists of a reef which begins at a depth of under 10 meters and descends down to a depth of 20 meters, keeping this dive site shallow. There are a series of boulders which are covered in numerous sponges and corals, between the cracks and corals you will be able to find numerous small critters such as shrimps and nudibranchs. The currents here are generally light and it is often dived as a night dive. Due to the corals and small marine creatures of various colours this site is great for underwater photography.

Chek Isa Dive Info

Terrain & Features

Rock, Reef

Entry Type

Boat

Max Depth

20m

Visibility Range

6m – 18m

Experience Level

Beginner

Best Gas Mix

21% – 47%

O2
CNS Load (35 min)

12% at 18m / 36%

O2
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Marine Life
  • Lobsters
  • Nudibranchs
  • Parrotfish
  • Shrimps
Weather Conditions
Water Temperature ℃
Dive Operators near Chek Isa
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Location
Dive Site Hazards

  • Bubble Trapping Under Overhangs — Rock overhangs can trap exhaled bubbles, reducing visibility and causing disorientation.

  • Reflected Surge Patterns — Surge reflecting off rock faces can create irregular and unpredictable water movement.

  • Current Funnel Effect — Narrow gaps between rocks can accelerate water flow unexpectedly.

  • 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.

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