Boats on idyllic sand beach with Mnemba Island in the background, Zanzibar, Tanzania, East Africa, Africa

horizontal travel destinations travel day aerial view cloud sky no people zanzibar tanzania east africa africa boat anchor coral reef sea water lagoon beach sand coastline mnemba island tropical climate water's edge travel destination tourist destination tourist destinations seas ocean oceans outdoor outside nobody no one no person lagoons daytime boats nautical vessel nautical vessels transport transportation beaches shore shores shoreline seaside coast coastal coasts coastlines