Crevice

Mariana Islands, Micronesia

Depth

40m

Visibility

15m - 45m

Entry

Boat

Experience Level

Advanced

Crevice

Mariana Islands, Micronesia

Depth

40m

Visibility

15m - 45m

Entry

Boat

Experience Level

Advanced

About Crevice

Also known as The Underwater Zoo. The Crevice is part of the Haps Reef System, and situated in deep water. Here you wil find a steep descending canyon formation which was once part of a cliff. Large amounts of coral enveloped boulders. Interesting bottom topography.

Crevice Dive Info

Terrain & Features

Reef, Rock, Deep, Other

Entry Type

Boat

Max Depth

40m

Visibility Range

15m – 45m

Experience Level

Advanced

Best Gas Mix

21% – 28%

O₂

CNS Load (20 min)

13% at 38m / 29%

O₂

Multi-Level Dive Planner

Photo gallery

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Marine Life

Groupers
Rays
Snappers
Trigger Fish
Turtles
Various

Weather Conditions

Weather information for Crevice coming soon.

Dive Operators near Crevice

We couldn’t find dive operators near “Crevice”. You can browse all operators in Micronesia 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.

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.

Gradual Narcosis Onset — Narcosis may develop slowly, making self-assessment unreliable.

Task Fixation at Depth — Cognitive narrowing at depth can reduce awareness of time and ascent rate.

Increased Gas Density Breathing Load — Higher gas density at depth increases work of breathing.

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