BOATING MS, MCSs of sea otter floating on its back, rolling over, preening itself and diving near shoreline in late afternoon sunlight (5:57). MLS, MSs of five sea otters resting on their backs near shoreline, house visible, MCS of two otter rolling over and diving (2:29). CSs, CUs of sea otter floating on its back, rolling over (3:56). BOATING MS of large group of at least thirty sea otters resting in late afternoon sunlight, they all dive at the same time except for two (0:55).