Seal Island, which is in False Bay, is a granite rock approximately 2 ha in area. There is no beach or vegetation, however, it is home to the Cape Fur Seal and the African Penguins. Some other bird species that breed regularly on the island are Whitebreasted Cormorants and Bank Cormorants.

Fortunately, the market for fur seal products crashed in 1983 and seal harvesting no longer occurs on Seal Island and as a result, the seal population has increased. However, the seals attract the Great White Sharks and an ecotourism industry to view the sharks is slowly developing.

There are many boat trips on offer to view the island, some to just observe. However, for the adventurous, there are also some charters that offer the opportunity to go cage diving to view the great white shark.