Sea Horse Rock

Krabi, Thailand

Depth

18m

Visibility

9m - 27m

Entry

Boat

Experience Level

Beginner

Sea Horse Rock

Krabi, Thailand

Depth

18m

Visibility

9m - 27m

Entry

Boat

Experience Level

Beginner

About Sea Horse Rock

Also often refered to as Koh Ha. Known to be one of the 7 smaller islands in Koh Phi Ohi, Sea Horse Rock is probably one of the most often dived spots in the area. How did this site get it's name? From the large amounts of sea horses to be found here of course. Start you dive in shallow waters and make your way to a maximum depth of 18 meters. This depth range continues all around the island making it easy for all level divers to explore, however, there are deeper areas. Sea Horse Rock is rich in marine life and corals.

Sea Horse Rock Dive Info

Terrain & Features

Reef, Rock

Entry Type

Boat

Max Depth

18m

Visibility Range

9m – 27m

Experience Level

Beginner

Best Gas Mix

21% – 50%

O₂

CNS Load (45 min)

13% at 16m / 36%

O₂

Multi-Level Dive Planner

Photo gallery

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Marine Life

Groupers
Reef Fish
Seahorse

Weather Conditions

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Dive Operators near Sea Horse Rock

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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.

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.

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