Vulcan Rock

Western Province, South Africa

Depth

40m

Visibility

10m - 30m

Entry

Boat

Experience Level

Advanced

Vulcan Rock

Western Province, South Africa

Depth

40m

Visibility

10m - 30m

Entry

Boat

Experience Level

Advanced

About Vulcan Rock

Located south-west of Hout Bay off the Karbonkelberg, where the blinder can be seen from the see. The site consists of a large pinnacle that rises to about 5m below the surface and is covered in colourful marine growth. There is also a large tunnel running through the bottom of the rock. The site is only accessible by boat and is a short 20 minute ride from Hout Bay Harbour. This is a popular dive spot during summer and the visiblity is usually good but the water can be very cold. Beware of strong currents and always use a drift line.

Vulcan Rock Dive Info

Terrain & Features

Rock, Reef

Entry Type

Boat

Max Depth

40m

Visibility Range

10m – 30m

Experience Level

Advanced

Best Gas Mix

21% – 28%

O₂

CNS Load (20 min)

13% at 38m / 29%

O₂

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Marine Life

Cold-Water Coral
Crayfish
Deep-Water Cowries
Fish Species
Nudibranchs

Weather Conditions

Water Temperature ℃

Dive Operators near Vulcan Rock

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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.

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.

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