Abstract: An underwater obstacle course target hoop for use in underwater buoyancy training includes a plurality of hollow tubular members having open opposite ends, a plurality of connector members interfitted with all but two adjacent opposite ends of the tubular members, and a pair of separate end caps respectively attached to and interfitted with the two adjacent ends of the adjacent pair of the tubular members so as to define an escape gap between the two adjacent ends of the tubular members for preventing entanglement of a diver with the hoop. The tubular members and connector members define upper and lower portions of the target hoop. The tubular members of the lower portion of the hoop contain a plurality of apertures for permitting entry of water into the lower portion of the hoop when submerged in water.

Abstract: An underwater obstacle course kit for use in underwater buoyancy training includes a plurality of identical target sets. Each target set includes a target hoop, a line cord, and a line holder. The target hoop has a sealed interior for excluding water therefrom and for providing a buoyancy to the target hoop such that it is capable of undergoing upward floating movement toward a surface of a body of water. The line cord has one end portion attached to the target hoop and an opposite end portion being attachable to an object on a bottom of the body of water of sufficient weight to resist upward floating movement of the target hoop toward the body of water surface.