Longnose Reef

Norfolk Island, Norfolk Island

Depth

30m

Visibility

15m - 45m

Entry

Boat

Experience Level

Experienced

Longnose Reef

Norfolk Island, Norfolk Island

Depth

30m

Visibility

15m - 45m

Entry

Boat

Experience Level

Experienced

About Longnose Reef

This reef is located off the Northern side of Norfolk Island. Both sides of this reef has their own distinct topography. Rich in hard and soft corals and has abundant marine life. Due to depth and mild currents, its recommendd that beginner divers, dive with instructors or groups. A very exciting dive with lots to see and explore along the walls.

Longnose Reef Dive Info

Terrain & Features

Wall, Reef

Entry Type

Boat

Max Depth

30m

Visibility Range

15m – 45m

Experience Level

Experienced

Best Gas Mix

21% – 35%

O₂

CNS Load (25 min)

16% at 28m / 36%

O₂

Multi-Level Dive Planner

Photo gallery

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Marine Life

Eels
King Fish
Lion Fish
Pelagic Fish
Rock Cod
Tropical Fish
Various

Weather Conditions

Weather information for Longnose Reef coming soon.

Dive Operators near Longnose Reef

We couldn’t find dive operators near “Longnose Reef”. You can browse all operators in Norfolk Island here.

Location

Location details missing.

Dive Site Hazards

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.

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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