On the water
Kayaking, swimming, surfing, lagoon & ocean cruises, fishing, diving
On dry land
Golf (3 excellent courses: Knysna, Pezula & Simola), forest, clifftop & beach walks, cycling/MTB trails, winetasting, Segway trips.
In the air
Paragliding, helicopter/light aircraft flips, zip-lining, bungee-jumping.
Birdwatching (almost everywhere!), Plettenberg Game Reserve, Knysna Elephant Park, Birds of Eden, Monkeyland, Radical Raptors, Tenikwa Wild Cat Sanctuary, Lawnwood Snake Sanctuar