Abstract: An infant flotation device for use in a marine environment comprises a body, having an outer surface defining a recessed area configured to receive an infant, and a hollow chamber opposed with the outer surface of the body and surrounded by the body. The body also defines a pivot mount that can extend into the cavity in juxtaposition with the outer surface. The infant flotation device further includes a swingable weight comprising a first end having an attachment mount pivotally received by the pivot mount for pivotal movement with respect to the body, and a second end having a weight thereon. The swingable weight can provide the infant flotation device with self-righting movement and stability.