Cape Peninsula Kelp Forests

A day here starts with a wind check rather than a boat booking. Centres watch the forecast overnight, decide in the morning which coast is worth driving to, and meet divers at a slipway or a car park above the rocks. A lot of the diving is walked in: kit up beside the vehicle, cross a beach or a boulder field, and swim out over the shallows. Boats run short hops from harbour on either side of the peninsula when the offshore reefs and pinnacles come good.

Underwater, much of the peninsula is granite. Rounded boulders stack into swim-throughs and gullies that funnel surge, with pale sand between them. Sea bamboo takes hold on the tops of those boulders, and in the shallows its stipes reach the surface, so a dive becomes a matter of finding channels through the stalks while the canopy filters the light overhead. Nothing is deep, roughly 5 to 20 m, and the interest is close-in work: holdfasts, undercut rock, and the animals living in both.

Sites separate by exposure more than by depth. Sheltered coves with easy entries carry the courses and the first kelp dives, while open rocky points take the swell and reward divers who can hold position in surge. False Bay's inshore reefs are the ones associated with sevengill sharks, though that aggregation has been far less predictable since orca were reported preying on sevengills in the bay. The same rock at night turns up a different cast, with octopus out hunting and the small stuff easier to pick out under torchlight.

This suits divers who came for an environment rather than a species list: photographers shooting wide-angle and macro on the same dive, freedivers, and anyone content to spend a week in the top 20 m. Water sits somewhere between 8 and 20 degrees depending on coast and wind, and the Atlantic side can drop to the bottom of that after an upwelling, so thermal kit decides how much of the day you enjoy. Divers hoping for warm water and blue-water schooling fish are on the wrong coast.