sunrise america river basin. one of south africa's largest freshwater reserves. bridget corrigan is a botanist. and a specialist in the region's biodiversity. this is a very special catchment for a lot of reasons if it's a unique but a very city from not just the terrestrial but also the 1st one of our diversity is very special it's got about 14 species of fish and a lot of really and demick species of invertebrates and quite insects that contribute to the health of the sort of this river system. there are 200 trees species in america. that's 17 of them. and about $400.00 in the bed spaces. it is a national treasure and the north west doesn't have a lot of these river systems a lot of the systems in this province are heavily degraded. the crown jewel of this natural treasure lies just a few paddle strokes upstream. a sanctuary hidden at the heart of the reserve. this is america i we're at the source of america river. and the water levels up from the underground what to kevin's at that point of the day the water is clear is anything very low conduct city which mea