Dive Site: Montague Island

Dive site facts: Montague Island

Depth

5–40 m

Current

Variable, can be strong

Visibility

10–40 m

Water temperature

14–26°C

Entry

Boat

Level

Open Water Diver to Advanced

Dive type

Reef, pelagics, seals, sharks

Region / port

New South Wales, Australia (Narooma)

Coordinates

-36.25, 150.2333

Conditions & Currents

Montague Island experiences variable currents, particularly influenced by the East Australian Current, which can bring warmer water and increased visibility but also stronger flows. Some deeper sites like Manta Dropoff are noted for significant current, making them suitable for experienced divers comfortable with drift diving. Briefings emphasize current direction, entry procedures, and exit plans to manage these conditions effectively and ensure diver safety. Visibility can range from 10 to 40 meters, often improving significantly when warm current pulses push south, carrying clear water. Divers should be prepared for potential surge, especially at shallower, exposed sites, and maintain strong situational awareness throughout the dive.

Marine life & sighting chances

Australian fur seal

Year-round, peak Sep-Oct · common

New Zealand fur seal

Year-round, peak Sep-Oct · common

Grey nurse shark

Nov-Apr · common

Wobbegong shark

common

Port Jackson shark

occasional

Eastern blue groper

common

Kingfish

Warmer months · common

Morwong

common

Trevally

common

Snapper

common

Bull ray

common

Fiddler ray

common

Moray eel

common

Nudibranch

occasional

Dive profile & how the dive runs

A typical dive at Montague Island often begins with a boat entry, descending onto rocky reefs or bommies. For seal dives, you'll typically explore sheltered bays between 5-20 meters, allowing for extended interaction with the inquisitive Australian and New Zealand fur seals. If targeting grey nurse sharks, dives are usually on the northern side of the island in depths of 14-26 meters, observing them resting in gutters or swim-throughs. Deeper sites like Manta Dropoff, reaching 40 meters, involve following a reef edge, often as a drift dive, in search of pelagics and mantas. Turn points are usually determined by air consumption or bottom time, with safety stops conducted as required during a controlled ascent, often alongside the boat or in a calmer section of the reef. The specific route is always adapted to prevailing conditions and marine life sightings.

Underwater photography

Montague Island offers fantastic opportunities for both wide-angle and macro photography. For the playful fur seals, a wide-angle lens is essential to capture their energetic interactions and the surrounding underwater scenery. Keep your strobe settings flexible to account for their fast movements and the variable ambient light in shallower areas. For grey nurse sharks, a wide-angle setup is also ideal, especially when they aggregate in their resting gutters. Macro photographers will find subjects like nudibranchs and colorful encrusting sponges on the reef walls, requiring a dedicated macro lens and careful buoyancy control to avoid disturbing the delicate environment. Given the potential for strong currents and active subjects, good buoyancy and quick camera adjustments are key to successful shots.

Combine with nearby dive sites

• Julian Rocks

  Julian Rocks, known as Nguthungulli by the local Bundjalung people, is a prominent marine reserve located approximately 2.5–3 km off the…

• Fish Rock Cave

  Fish Rock Cave, located off South West Rocks in New South Wales, Australia, is renowned as the country's only true ocean cave dive.

• North Solitary Island

  North Solitary Island, located within the protected Solitary Islands Marine Park off the coast of New South Wales, Australia, represents a…

• South Solitary Island

  South Solitary Island, located approximately 8-9 nautical miles offshore from Coffs Harbour, New South Wales, Australia, is a premier dive…

• Lord Howe Island - Erscotts Hole

  Erscott's Hole is a celebrated dive and snorkel site located within the protective lagoon of Lord Howe Island, a UNESCO World Heritage site…

Getting there & logistics

Access to Montague Island is primarily from Narooma, located on the New South Wales South Coast. The nearest major airport is Sydney Airport (SYD), from which Narooma is approximately a 4-5 hour drive. Daily boat tours depart from Narooma, with trip durations varying based on the operator and chosen dive sites. A typical dive trip usually lasts a half-day. As Montague Island is within the Batemans Marine Park, specific regulations apply to protect its rich ecosystem, and all diving activities must be conducted with licensed operators. Multi-day trips often combine several dives around the island, with opportunities for snorkeling and land tours to see the lighthouse and other wildlife.

Safety & environment

Diving at Montague Island requires careful attention to safety protocols due to variable conditions, including strong currents at some sites. Divers should always carry valid dive insurance and ensure their certification aligns with the planned dive depths and conditions. The nearest recompression chamber facilities are in Sydney. Operators typically conduct thorough briefings covering site-specific hazards, current behavior, and emergency procedures. Evacuation in a serious incident would involve boat transfer back to Narooma and then land-based medical transport. Always dive within your training and experience limits, follow your guide's instructions, and respect the protected marine environment by maintaining good buoyancy and avoiding contact with marine life.

Who it suits — and who it doesn't

FAQ

Montague Island FAQ

Liveaboards diving Montague Island

These liveaboards may visit Montague Island on selected itineraries — the exact dive sites depend on departure, weather and conditions.

Spoilsport

Australia

28 guests30 m

Odyssey Liveaboard

Australia

20 guests24 m