Portsea Hole

Victoria, Australia

Depth

30m

Visibility

4m - 12m

Entry

Boat

Experience Level

Experienced

Portsea Hole

Victoria, Australia

Depth

30m

Visibility

4m - 12m

Entry

Boat

Experience Level

Experienced

About Portsea Hole

One if Victoria's highest caliber sites, this is a deep hole in the sand that was once a bend in the Yara river, about 500m from the Portsea Pier. Wonderful throngs of fish here. Can only be dived in slack water its quite versatile on the depth range (14 75m) - it is used to train novices and even trimix groups in places. There's a fishing wreck on the eastern side at 25m with heavy different better for the advanced divers. On the top of the hole at 14 there are some bommies and hundreds of fish.

Portsea Hole Dive Info

Terrain & Features

Other, Wreck

Entry Type

Boat

Max Depth

30m

Visibility Range

4m – 12m

Experience Level

Experienced

Best Gas Mix

21% – 35%

O₂

CNS Load (25 min)

16% at 28m / 36%

O₂

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Marine Life

Blue Throated Wrasse
Boarfish
Cuttlefish
Old Wives
Southern Blue Devils

Weather Conditions

Water Temperature ℃

Dive Operators near Portsea Hole

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Location

Dive Site Hazards

Deceptive Entry Openings — Openings may become restrictive inside due to angle, collapse, or corrosion.
Surge-Induced Internal Silt Shift — Internal surge can move silt and debris without direct contact.
Partial Overhead Environment — Many wrecks limit direct ascent even without full penetration.

Fine Rust Particle Silt-Out — Disturbed rust particles can rapidly reduce visibility.

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