An animal flotation device is provided. The animal flotation device is a non-inflatable, semi-submersible flotation apparatus for a dog to stably sit, lay and move about while partially submerged in a body of water of any depth. The animal flotation device may have a peripheral portion defining an interior portion. The interior portion provides a generally rigid area adapted to become semi-submersed within the body of water when supporting the dog, whereby the peripheral portion provides buoyancy and stability to the semi-submersed interior portion so that the dog may move around and feel safe while floating atop the body of water.