A seal was spotted sunbathing near the water at the Newtown Creek Nature Walk in Brooklyn Sunday.
Officials believe the seal came in with high tide, and was probably chasing fish.
The animal remained on the third step of a set of stairs leading into the water until swimming away with the return of high tide Sunday afternoon.
Authorities said the seal did not appear to be injured.
A harp seal was spotted on Rockaway Beach earlier this week.