The site in Lopintol Village, Mayalibit Bay District, at coordinates 00^o18’55,7”S and 130^o53’44.2”E, is located on the west edge of Mayalibit Bay. Locally, on limestone walls of the Waigeo Formation that form a niche, stalactites are developed which are more than 3 m long. Due to its odd shape, which resembles a male genital, the locals named it Batu Kelamin ('batu' means rocks, 'kelamin' means genital). The locals believe that by giving alms in the form of money, which is inserted in stalactites, their wish to have offspring can be granted.