The Arch
Protected Area
Booderee
Why dive here
With 199+ marine species recorded in the area - including blue sharks, bull sharks, dolphins, dugongs and great white sharks - The Arch offers some of Sydney & New South Wales's richest cave diving. Water ranges 18-23°C, warmest January, February, March.
The Arch, just off Bare Island, offers a simple but satisfying dive for those keen on exploring rock formations. We usually drop down to about 18 meters, where a large swim-through cuts through the reef. Inside, you’ll often spot wobbegongs tucked into the corners and maybe a few eastern blue gropers hanging around the entrance. It's a great spot for newer divers looking to practice buoyancy in an overhead environment, without anything too challenging.
Safety Notes
Overhead environment - never enter without proper cave/cavern training, redundant equipment, and a guideline.
Reviews for The Arch
Conditions
Ocean conditions, forecast and tides for The Arch
The Arch Ocean Conditions
Monthly averages for The Arch, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (-33.18, 151.63) (7km away)
October Averages
Sea Temperature
20°C
67°F · Range: 18.5–20.7°C
Air Temperature
17°C
63°F
Wind Speed
5.95 m/s
11.6 knots
Atmospheric Pressure
1016.2 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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