Famous old favourite: Potberg MTB combined with the brand new De Hoop Nature Reserve route = AWESOME! 2 days. 2 Nature Reserves. Stay in luxury, or camp. The all new combined De Hoop and Potberg MTB challenge is a feast for mountain bikers and nature lovers alike. Take in the sight of 350 breeding whales - the best land based whale watching site in the southern hemisphere - in prime whale watching season. Then be lucky enough to spot one of the 220, almost extinct Cape Vultures and discover the Potberg drive to save this magnificent giant bird from extinction.