

Best for beginner divers, 14-25m, boat entry, moderate current.
Old Man's Hat is a reef and cave site located 300 metres off North Head. Divers can explore depths between 14 and 25 metres, with an average depth of 19 metres. The site features a cave structure and is accessible only by boat. Currents are generally moderate, ranging from 1 to 3 knots, and the site can be dived as a drift. Visibility typically spans 10 to 25 metres. Marine life includes common sightings of Giant Cuttlefish, Spotted Wobbegong, Eastern Blue Groper, and various wrasses. Divers may also encounter Weedy Seadragons, Port Jackson sharks, and Blue Devilfish. Due to high boat traffic, the use of a surface marker buoy is essential.
-33.82161, 151.29379
Carry a torch for the ledges and caves where the grey nurse sharks and wobbegongs shelter.
Boat access only. Charter operators depart from various Sydney marinas including Manly and the CBD.
Recorded at this site
Depth
14-25m
Visibility
10-25m
Skill Level
Beginner
Entry
Boat
Boat required
Water Temp
18-23°C
Current
Moderate
Typical Dive
40 min
Best Time
Jan, Feb, Mar, Apr, Oct, Nov, Dec
Divers regularly encounter Giant Cuttlefish, Spotted Wobbegong, Eastern Blue Groper, and various wrasses. Other species such as Weedy Seadragons, Port Jackson sharks, and Blue Devilfish are also recorded here.
Yes, the site is suitable for beginners, though divers should be comfortable managing moderate currents and boat traffic.
The site ranges from 14 to 25 metres in depth, with an average depth of 19 metres.
This is a boat dive; a boat is required to reach the site 300 metres offshore.
The best months to dive are October through April, which offer the most reliable conditions, calmer seas, and better visibility.
Diving at Old Man's Hat in Manly requires the following certifications: Open Water. Always dive within your training limits.
A 5mm wetsuit is recommended for diving at Old Man's Hat in Manly. Water temperatures range from 18°C to 23°C.
Divers at Old Man's Hat in Manly should be aware of sharks. These encounters are generally rare and avoidable with proper awareness. Follow local safety guidance and maintain a respectful distance from all marine life.
Expect moderate currents at Old Man's Hat in Manly. Good buoyancy control and some drift diving experience is helpful.
Visibility at Old Man's Hat in Manly typically ranges from 10 metres to 25 metres. Conditions vary with weather, tides, and seasons.