A protective assembly for an above ground swimming pool includes a pool cover and plural clips for securing the cover to the pool coping. The cover is fabricated from lightweight, polyester, mesh material. The material has an open weave to allow sunlight and rain therethrough and allow complete circulation and filtration of pool water. However, the weave is of a gauge small enough to prevent debris from trees, insects, animals and the like from coming in contact with the water in the pool. Unique clips are provided so that the cover can be easily mounted to and removed from the pool structure.