Tracking Big Game on Horseback (Limpopo Province and Okavango Delta, Botswana): Experience Africa as the pioneers did. Equus Wilderness Horse Safaris offers relatively luxurious facilities and the chance to track rhino, giraffe, zebra, and many species of antelope in the Waterberg Conservancy; while Okavango Horse Safaris offers an alternative form of transport to the popular mokoro (dugout canoe).
Throwing Yourself Off Table Mountain (Cape Town): Attached to a rope, of course. At 100m (328 ft.), this is the highest commercially run abseil in the world, and the most exhilarating way to see the city and the Atlantic seaboard.
Paragliding Off Lion's Head to Camps Bay Beach (Cape Town): It's a breathtaking ride hovering over the slopes of Table Mountain. As you slowly glide toward the white sands of Camps Bay, lapped by an endless expanse of ocean, you'll have time to admire the craggy cliffs of the Twelve Apostles.
Kayaking to Cape Point (Cape Town): Kayaking is the most impressive way to view this towering outcrop, the southwesternmost point of Africa. It's also the ideal opportunity to explore the rugged cliffs that line the coastline, with numerous crevices and private coves to beach yourself on.
Mountain Biking Through the Knysna Forests (Garden Route, Western Cape): Starting at the Garden of Eden, the 22km (14-mile) Harkerville Red Route is considered the most challenging in the country. Its steep, single-track slip paths take you past indigenous forests, silent plantations, and magnificent coastal fynbos.
Bungee Jumping Off Bloukrans River Bridge (Garden Route, Western Cape): The real daredevils do the highest bungee jump in the world in just their birthday suits, leaping 216m (708 ft.) and free-falling (not to mention screaming) for close to 7 seconds.
Surfing "Bruce's Beauties" (Cape St Francis, Eastern Cape): Bruce's Beauties, the waves featured in the 1960s cult classic Endless Summer, form an awesome right-point break. They need a massive swell, however, and don't work very often; the same goes for Supertubes, hailed the "perfect wave," in nearby Jeffrey's Bay.
Surfing the Mighty Zambezi River (Victoria Falls, Zimbabwe): Not content with merely rafting down the Zambezi, the latest adrenaline rush offered by river operators is plunging into the churning waters attached to nothing more than a boogie board, and riding the 2m to 3m (6-ft.-10-ft.) high waves.
Riding an Elephant Through the African Wilderness (Victoria Falls and Okavango Delta, Botswana): This is a great way to explore the delta, not only because of the elevated view and the proximity with which you can approach animals, but because you can't feel safer -- no one in the jungle messes with an elephant.