Recreational kayakers explore sand bank in scenic Goukou estuarine river, aerial

goukou estuarine river recreational kayakers sand bank still bay explore garden route scenic vacation spot aerial estuary mouth stilbaai marine reserve fish nursery ecosystem seaside town south africa holiday spot tidal wetland holiday destination clear water tidal flooding coastal habitat salt marsh mud flats river western cape coastal management environment river bank tourism wetland seawater salt and brackish marshes estuarine marsh intertidal zone drone birdseye famous saltmarsh estuarine reeds coastal town cape garden route south africa southern coast marine protected area mpa