Whaley has an elliptical body which has a blue upper half, with the lower half being white. It has two blue fins with white markings on the insides, and two dorsal fins on the back. The top of Whaley's head is dotted with small barnacles.
Whaley's blubbery skin protects it from the cold, deep ocean. Without a lung large enough to hold their breath for long, however, they can only dive underseas for under an hour.