

Best for advanced divers, 0m, boat entry, strong current.
Lethbridge Bay Reefs, located off Melville Island, is a challenging marine site requiring boat access. The area is defined by significant tidal movements, with ranges between 1.5 and 8 metres, resulting in strong rips and sweeps. Divers must navigate these variable currents and exercise extreme caution due to the presence of saltwater crocodiles, which are a constant danger in these coastal waters. Box jellyfish are also prevalent, particularly between October and May. Given these environmental hazards, the site is suited for advanced divers only. Water temperatures remain warm throughout the year, ranging from 27C to 31C.
-11.34500, 131.02500
Plan your dives around the dry season window from May through October when conditions are generally more predictable and manageable. Always get a current local briefing on crocodile activity before entering the water, as conditions here can change quickly and that risk is real.
Access is via boat, likely departing from the community of Milikapiti on Melville Island. The Tiwi Islands are remote and access may require permits or be part of a guided tour.
Expected in this region. No sightings logged here yet.
Depth
0m
Visibility
0m
Skill Level
Advanced
Entry
Boat
Boat required
Water Temp
27-31°C
Current
Strong
Best Time
Year-round
No, this site is intended for advanced divers due to strong currents, significant tidal movements, and serious environmental hazards.
Access to the site is by boat only.
Snorkelling is possible but rated 2/5, and extreme caution is required due to the presence of saltwater crocodiles and box jellyfish.
The best time to dive is during the dry season, specifically from May through October, when conditions are generally more predictable.
Significant hazards include saltwater crocodiles, box jellyfish, strong currents, and sharp coral.
Diving at Lethbridge Bay Reefs in Melville Island requires the following certifications: Advanced. Always dive within your training limits.
A rashguard or 2mm shorty is recommended for diving at Lethbridge Bay Reefs in Melville Island. Water temperatures range from 27°C to 31°C.
Lethbridge Bay Reefs in Melville Island can have strong currents. Advanced experience with drift diving and current navigation is recommended.