After watching this otter play with another otter in the enclosure at the Singapore Zoo it would stop from time to time, pop its head out of the water and just at a rest.

Camera: Nikon D610
Lens: Nikkor 200-500mm
Focal Length: 400mm
Exposure: 1/160 @ f/5.6
ISO:800
Tripod: Mefoto Roadtrip