

Best for advanced divers, 5-120m, boat entry.
Halfway Wall at Osprey Reef is a challenging deep dive site featuring a sheer wall that drops from 5 metres to 120 metres. The topography offers varied depth profiles, with the most dramatic features located between 30 and 40 metres. Due to the significant depth and potential for strong currents, this site is strictly for advanced and technical divers. Boat access is required, and divers must manage gas reserves and decompression obligations carefully. Visibility ranges from 10 to 60 metres. Divers should use a reef hook when currents are present and maintain a safe distance from marine life.
-13.88925, 146.55503
Plan your bottom time and gas reserves conservatively before you splash, because the wall's gradual slope makes it easy to drift deeper than intended without noticing. Confirm dive charter details and any site-specific requirements locally before booking.
Access is via liveaboard dive boats, typically departing from Cairns or Port Douglas. The journey to Osprey Reef is usually an overnight trip of 10-12 hours.
Recorded at this site
Depth
5-120m
Visibility
10-60m
Skill Level
Advanced
Entry
Boat
Water Temp
24-27°C
Current
None
Best Time
Year-round
No, this site is intended for advanced and technical divers due to its significant depth and potential for strong currents.
The wall drops from 5 metres to 120 metres, requiring careful planning for gas and decompression.
Halfway Wall is a boat-only dive site accessed via local boat charters.
The site is accessible year-round, with diving possible from January through December.
Hazards include deep water, decompression requirements, and strong currents. Divers should plan gas reserves conservatively and use a reef hook if necessary.
A 3mm wetsuit is recommended for diving at Halfway Wall in Coral Sea Reefs. Water temperatures range from 24°C to 27°C.
Visibility at Halfway Wall in Coral Sea Reefs typically ranges from 10 metres to 60 metres. Conditions vary with weather, tides, and seasons.