These images are from the same trip as the ducks I posted a couple of days ago.
Northern Sea Otters rarely leave the water. They spend so much time swimming/floating on their backs that their anatomy has evolved accordingly. The hind feet still have toes and nails but are functionally flippers. They can't run upright like river otters but more or less slither along when out of the water. And their rib cages are strangely flattened. Being nearly helpless when out of the water, one of the only places they feel comfortable is on floating ice chunks (or sometimes rocks) far from land. But being as vulnerable as they are, they typically dive back in as soon as there is a hint of danger. So getting photos of them out of water is not very easy.
Shot with D7100 and 500mm VR, handheld
Momma otter. You can tell this is a female otter that has mated before due to the scar on her nose. During mating the male otter bites and holds the female otter by the nose often leaving such scars. She is sitting in a very strange position for a sea otter. They are basically horizontal all the time. She was curled around grooming herself and when she noticed us drifting by (engine shut off) she froze in that position to evaluate us.
Friends. These guys actually climbed up on the ice while we were there watching. Very unusual in their lack of caution. Likely youngsters who don't know any better yet. Though we were effectively in a blind inside the cabin of the boat and shooting out a window.