The Castle

Tasmania, Australia

Depth

30m

Visibility

8m - 23m

Entry

Boat

Experience Level

Advanced

The Castle

Tasmania, Australia

Depth

30m

Visibility

8m - 23m

Entry

Boat

Experience Level

Advanced

About The Castle

This dive begins with a huge undercut covered in healthy coral. The wall leads you to a 30m long tunnel full of lobster. The tunnel leads you to a safety at Mount Everest. This dive has an '�alternate ending'.

The Castle Dive Info

Terrain & Features

Cave, Rock

Entry Type

Boat

Max Depth

30m

Visibility Range

8m – 23m

Experience Level

Advanced

Best Gas Mix

21% – 35%

O₂

CNS Load (25 min)

16% at 28m / 36%

O₂

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Marine Life

Lobster
Seawhip
Sponges

Weather Conditions

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Dive Operators near The Castle

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Location

Location details missing.

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.

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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