Ecuador and the Galápagos, July 23 - August 7, 2007 / 20070804i_IsabelaPuntaMoreno_WhiteTippedShark Ruth Milner, rmilner plus web at bookofmarvels dot net 12/21/2007

White-tipped Shark, Punta Moreno The lagoons here are connected to the ocean at high tide (hence their brackish water), and then isolated when the tide level drops. A few white-tipped sharks had been caught in the lagoon and were lazily cruising around.