Raggie Cave
Depth is the range from the top of the site to its usual maximum; "recommended cert" is the mainstream-agency level operators usually ask for, not a legal rule. Currents and visibility change daily — treat everything here as planning ranges.
Raggie Cave is not a true cave but a deep, overhung bowl in Aliwal's sandstone — and in winter it fills with exactly what the name says. Ragged-tooth sharks gather here during their mating season, hanging almost motionless in the gully, mouths ajar with that permanent snaggle-toothed menace that belies a placid nature. Divers settle at the rim, keep low, and let the sharks drift past at arm's-length range; ten or more animals share the bowl on good days. Around the edges the shoal's usual cast — morays, rays on the sand, clouds of goldies — carries the dive when the raggies wander.
The moment you come for: Winter aggregations of ragged-tooth sharks at close, calm range
Topography: Sandstone amphitheater and overhung gully in the shoal's fossil-dune reef
Current: Surge and along-shoal current vary with swell; entries are negative drops from RIBs after a surf launch.
Know before you splash
Hazards: Surge in the bowl, current over the shoal, and surf launches to reach it.
Permits & rules: Aliwal Shoal MPA permit required, arranged via operators.
Conservation: Do not block the gully mouths or crowd the sharks — they abandon the site when hemmed in. The species is regionally threatened and these aggregations matter.
Nitrox: Worth it here — profiles sit in the range where enriched air meaningfully extends no-stop time (with the training to use it).
Who you'll meet
Giant Moray Eel
Loggerhead Turtle
Nudibranchs
Sand Tiger (Ragged-Tooth) Shark
For photographers
Wide angle: ★★★★★ · Macro: ★★☆☆☆ — editors' 1–5 rating of what this site gives each style of shooting