The waters of Cape Town are rich in marine life and offer year round diving for scuba divers of every level and preference – from haunting wrecks steeped in cultural history to glittering kelp forests that play host to a myriad colourful creatures.
Cape Town diving takes place along the Western coast of the Cape Peninsula, referred to by the locals as “The Atlantic Side”; the Western side of False Bay (Simon’s Town area) and the Eastern side of False Bay (Gordon’s Bay to Rooi Els).
Although it is believed that the Atlantic and Indian oceans meet at Cape Point (they actually meet further East at Cape Aghulus), there is a distinct difference in temperature between the waters of the Western coast of the Peninsula and those of False Bay. This is due to the cold Benguela current which makes its way north from the Antarctic, up the West coast of Africa. The result is that the waters along the Western coast of the Peninsula have an average temperature of between 8 °C and 12 °C. False Bay is protected from the Benguela current and temperatures here range from 12 °C in winter to 19 °C in summer.
As the ocean temperatures influence the diving, so do the seasons and the winds that accompany them. In summer, the South Easterly winds bring clear waters to the Eastern side of False Bay and the Western coast of the Peninsula; and in winter it is typical for the North Easterly wind to blow, clearing up the waters on the Western side of False Bay.
Summer diving in the colder waters of the “Atlantic Side” is exhilarating and fascinating. There are a number of beautiful shore-entry dives as well as deeper reefs and historical wrecks that can be reached by dive boat leaving from Hout Bay harbour. The underwater topography is characterised by huge, rounded granite and sandstone boulders, often covered with kelp. These underwater wonderlands play host to prolific marine life, including colourful fields of purple, pink, orange and green sea urchins; brightly coloured sponges and soft corals. Fish such as Hottentot, Galjoen, Shy Sharks and Red Roman are plentiful on most dives, as is the opportunity to be accompanied by playful and inquisitive seals.
The Eastern side of False Bay offers fantastic boat and shore entry dives in summer. Dive sites along the craggy cliffs between Gordon’s Bay and Rooi Els reach a maximum depth of about 20 metres and a number are accessible from the shore. Deeper dives such as the magnificent Steenbras Deep, which reaches a depth of 30 metres, are located further from the shore and can be reached by boat. The reefs along this side of the bay are covered with kelp; red bait; colourful soft sponges; feather stars; orange, pink and purple noble coral; orange sea fans and many types of beautiful nudibranch. Fish life includes Twotone Fingerfin, Galjoen, Jutjaw, Puffadder Shy Shark and Klipvis. Gully Sharks and baby Ragged Tooth Sharks have also been spotted on dives at Rooi Els.
Winter diving in Cape Town takes place along the Western side of False Bay, from Glencairn, past Simon’s Town to the point of the Cape of Good Hope. Underwater topography comprises of huge rounded granite boulders and smaller sandstone boulders. Here we have the world-famous Smitswinkel Bay wrecks which lie at an average depth of 35 metres and are a collection of 5 ships that were scuttled by the Navy in the early 1970s to form an artificial reef. All wrecks can be reached by boat launching from Miller’s Point Slipway just South of Simon’s Town.
There are also a number of beautiful reefs which can be reached from the shore and boat. The reefs are adorned with colourful sponges; sea anemones; green, purple and orange short spine urchins; sea fans; fields of small orange sea cucumbers and brightly coloured nudibranch. Another dive site that is extremely exciting along this side of the coast is Pyramid Rock where divers have frequent sightings of Seven Gill cowsharks.
For comfortable diving, it is advisable to wear a 7mm wetsuit with a hoodie, booties and gloves.
The Cape Peninsula is a marine reserve and divers wishing to dive he Western Coast of the Cape Peninsula or the Western side of False Bay are required to obtain a diving permit before entering the water. Year-long permits can be purchased from local post offices and shorter-term permits are available from many of the dive operators.