

Best for advanced divers, 18-27m, boat entry, moderate current.
Cathedral is a prominent reef and cave system at Aliwal Shoal, defined by a large amphitheatre structure. Divers can navigate the site through a front archway, a roof opening, or a swim-through. The formation creates a crater-like centre that provides shelter from moderate currents and surges. Located 5000 metres from the shore, this site requires boat access and is suited for advanced divers. Depths range from 18 to 27 metres, with an average of 21 metres. Visibility typically varies between 10 and 30 metres. Hazards include sharp coral, strong currents, surf, and surge, as well as the presence of stonefish, lionfish, and sharks.
-30.26510, 30.82500
During the Raggie season it is possible to see up to 40 of these placid sharks resting within the amphitheatre.
Boat launch through the surf.
Recorded at this site
Depth
18-27m
Visibility
10-30m
Skill Level
Advanced
Entry
Boat
Boat required
Water Temp
21-25°C
Current
Moderate
Typical Dive
50 min
Best Time
Jun, Nov
The depth at Cathedral ranges from 18 to 27 metres, with an average depth of 21 metres.
No, Cathedral is classified as an advanced dive site.
Access to Cathedral is by boat only, as it is located 5000 metres from the shore.
The best months to dive at Cathedral are June and November.
Diving at Cathedral in Umkomaas requires the following certifications: Advanced. Always dive within your training limits.
A 5mm wetsuit is recommended for diving at Cathedral in Umkomaas. Water temperatures range from 21°C to 25°C.
The best months to visit Cathedral in Umkomaas are June and November. Conditions outside these months can still be good but are less predictable.
Divers at Cathedral in Umkomaas should be aware of lionfish, stonefish, 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 Cathedral in Umkomaas. Good buoyancy control and some drift diving experience is helpful.
Visibility at Cathedral in Umkomaas typically ranges from 10 metres to 30 metres. Conditions vary with weather, tides, and seasons.