The most important thing is the float, which generates the necessary buoyancy (1). It must carry the water-permeable bottom plate (2) and the heavy gravel layer (3). Shelters (4) offer the chicks protection against sun and rain. A fence (5) prevents the chicks from falling off the raft. A pier with climbing aid (6) facilitates the entry of the raft in the controls. You cannot see the anchor chain. It anchored the raft on the body of water. Otherwise it would drift to the shore.