Sea creature

Sea creatures are collectable creatures in and  that can be obtained by diving underwater while swimming. To catch any sea creatures, the player must have a Wet Suit, either purchased from Tortimer Island or rented from Lloid in, or purchased from Nook's Cranny or the Nook Stop in. Some sea creatures such as Octopus and Lobster were classified as fish prior to.

Sea creatures, like fish, have a shadow that varies in size. Additionally, bubbles can be seen above a sea creature when swimming, and they may move slowly, quickly, erratically, or be completely stationary. There are a total of 30 sea creatures in, and 13 more were added in , while three (the Ear Shell, Clam, and Horsehair Crab) were removed. While initially absent from, sea creatures, along with swimming and Wet Suits, were added in the 1.3.0 Free Summer Update in July 2020.

Lists of sea creatures

 * Sea creatures in New Leaf
 * Sea creatures in New Horizons