Blue Hole Dwesa

Coffee Bay · Eastern Cape · South Africa

The Blue Hole at Dwesa lies within the Dwesa-Cwebe Marine Protected Area on South Africa's Wild Coast, a stretch of rugged, roadless shoreline between the Mbashe and Mthatha rivers in the Eastern Cape. This is frontier diving in every sense. The reserve is reached only by rough four-wheel-drive tracks through rural Transkei, the launch is from an exposed beach through surf, and the reef system below has been dived by fewer people than most wrecks on the Natal coast. We launched the inflatable through modest surf on a calm summer morning, motoring five minutes offshore to a GPS waypoint above the Blue Hole. Dropping in, I descended into warm blue water -- 23 degrees, a gift from the Agulhas Current -- and the reef materialised as a sprawling plateau of hard coral at 10 metres. Tabletop corals the size of dining tables spread across the rocky substrate, their surfaces swarming with damselfish and chromis. Brain corals and encrusting Montipora filled every gap, creating a solid living pavement. A large potato bass emerged from beneath an overhang, its mottled body drifting toward me with the bold curiosity this species is known for. It circled once, eye as large as a golf ball, then settled back into its shelter. Butterflyfish in yellow and black worked the coral surfaces, while a pair of tropical angelfish -- species more commonly seen in Mozambique -- hovered near a sea fan, their presence a testament to the warm current's reach. The Blue Hole itself is a depression where the depth drops to 18 metres, its walls covered in soft coral and sponge. Crayfish poked from crevices, antennae waving. Moray eels occupied holes at every level, some sharing space with cleaner shrimp. Schools of kingfish swept through on patrol, scattering smaller fish into the coral. Without the fishing pressure that has depleted so many South African reefs, Dwesa's marine life has the density and confidence of a time before humans started taking from the sea.