

Best for intermediate divers, 15-80m, boat entry, moderate current.
Northern Wall at Mermaid Reef is a drift dive featuring a reef top that drops into a wall reaching 80 metres. Divers experience moderate currents along the structure, though conditions can shift quickly. Visibility ranges from 10 to 50 metres. Due to the depth and potential for strong currents, this site is suited for intermediate divers. Boat access is required, and surface marker buoys are essential for safety during ascents due to active boat traffic. Localised upwellings of cool water support a variety of reef fish and invertebrates. Divers should plan their entry around slack water and maintain close proximity to their guide throughout the dive.
-17.10061, 119.65683
Plan your dive around slack water and brief your group on the ascent procedure before you enter, since boat traffic and current together make a controlled, well-signalled ascent the most important part of this dive. Check locally for updated current forecasts, as conditions at Northern Wall can shift quickly.
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Recorded at this site
Depth
15-80m
Visibility
10-50m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
25-27°C
Current
Moderate
Best Time
Oct, Nov
The site supports a range of reef fish and invertebrates, with localised upwellings providing feeding opportunities for various species.
No, Northern Wall is intended for intermediate divers due to the depth, potential for strong currents, and the requirement for drift diving skills.
The wall drops from the reef top to a depth of 80 metres, with an average depth of 80 metres.
This is a boat-only dive site located 260 kilometres from the shore.
October and November offer the most reliable conditions for diving at this site.
Hazards include boat traffic, strong currents, and the presence of sharks. Always use a surface marker buoy during your ascent.
Diving at Northern Wall in Broome requires the following certifications: Open Water. Always dive within your training limits.
A 3mm wetsuit is recommended for diving at Northern Wall in Broome. Water temperatures range from 25°C to 27°C.
Expect moderate currents at Northern Wall in Broome. Good buoyancy control and some drift diving experience is helpful.
Visibility at Northern Wall in Broome typically ranges from 10 metres to 50 metres. Conditions vary with weather, tides, and seasons.