Limestones of the Waigeo Formation exposed on the western edge of Mayalibit Bay, Waigeo, has undergone further karstification to form a short cave passage. This site is located in Warsambin Village, Mayalibit Bay District, at coordinates 00019’04,3”S and 130055’10.7”E. The cave entrance about 5 m above sea level is curved,

5 m wide and 3 m high. Cave decorations like stalactites, stalagmites as well as flowstones are found in a 10 m long dead-end passage. The cave floor is stratified by cave sediments in the form of loose sand which contains lots of vertebrate bone fragments and mollusk shells. These are thought to be kitchen waste or food remains of prehistoric man who once lived in the cave. When the cave began to be inhabited or became a prehistoric man stopover is not yet known.