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Rock Quarry

Rock Quarry

California, United States

Depth
Depth Icon

28m

Visibility
Visibility Icon

6m - 18m

Entry
Boat Entry Icon

Boat

Experience Level

Beginner

Rock Quarry

California, United States

Rock Quarry
Depth
Depth Icon

28m

Visibility
Visibility Icon

6m - 18m

Entry
Boat Entry Icon

Boat

Experience Level

Beginner


About Rock Quarry

This Quarry is located on the Southern end of Catalina Island. The bottom consists of large amounts of rock formations and gentle sloping sand which leads to a drop off. Great bottom topography with loads of coral covered rocks and abundant marine life.

Rock Quarry Dive Info

Terrain & Features

Rock, Other, Drop Off

Entry Type

Boat

Max Depth

28m

Visibility Range

6m 18m

Experience Level

Beginner

Best Gas Mix

21% – 37%

O2

14% at 26m / 36%

O2
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Marine Life

  • Bass
  • Eels
  • Halibuts
  • Lobsters
  • Various
Weather Conditions

Water Temperature
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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.

  • Edge-Accelerated Currents — Currents often strengthen along drop-off edges.

  • Depth Perception Distortion — Visual contrast can distort perceived depth.

  • Terrain-Induced Descent — Divers may unintentionally follow terrain downward.

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