Killer whale / Orcas practicing intentional stranding below a group of South American Sealions resting on a beach (Orcinus orca). Patagonia. The small population of Orcas of northern Patagonia uses a unique strategy of intentional stranding to capture South American Sealion pups at the edge of the water. This image is part of a series showing eleven orcas practicing intentional stranding on a beach at Punta Norte, Valdes Peninsula, Patagonia, Argentina. The entire practice session lasted about one hour and 20 minutes.