Wedge Island

Southern Australia, Australia

Depth

50m

Visibility

10m - 30m

Entry

Boat

Experience Level

Beginner

Wedge Island

Southern Australia, Australia

Depth

50m

Visibility

10m - 30m

Entry

Boat

Experience Level

Beginner

About Wedge Island

Named for its shape, this is a large island that can be reached from Pondalowie Bay. The ecosystem is similar to Kangaroo Island with plenty of drifts, swim throughs, caves, pinnacles and walls to explore. It's a relative way out so make sure you choose good weather.

Wedge Island Dive Info

Terrain & Features

Cave, Wall, Drift

Entry Type

Boat

Max Depth

50m

Visibility Range

10m – 30m

Experience Level

Beginner

Best Gas Mix

21% – 23%

O₂

CNS Load (20 min)

13% at 48m / 24%

O₂

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Marine Life

Abalone
Blue Devils
Cray
Grouper
Nannagui

Weather Conditions

Water Temperature ℃

Dive Operators near Wedge Island

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Location

Dive Site Hazards

Remote Silt Disturbance — Silt can be disturbed metres away from the source.
Rapid Stress Escalation — Stress can increase sharply when visibility or navigation degrades.
High Cognitive Load Navigation — Complex passages increase mental workload even on a line.

Unstable Visual Ascents — Relying on wall visuals can destabilise ascents.

Gradual Depth Creep — Lack of visual bottom reference can cause unnoticed descent.

Unsignalled Downcurrents — Downcurrents can form without visible indicators.

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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