South African Estuary Information System – Report No. 12: Buffels (WES)(CSW 1), Elsies (CSW 2), Sir Lowrys Pass (CSW 8), Steenbras (CSW 9) and Buffels (Oos)(CSW 11). In: Estuaries of the Cape. Part 2. Synopses of available information on individual systems. Heydorn, A.E.F. & Grindley, J.R. (eds).