Mon. It is located in Bahía Honda municipality, at 22 ° 23 '00 "North latitude and 83 ° 22' 38" West longitude, Artemisa province.Local monument category. Type: Natural and archaeological site. It is part of a “mogote” (small mountain with flat top), with wide and varied vegetation. This site belongs to the Paso Real formation. It is formed by limestone and mesozoic stones that have a great variety of colors and often contains fossil remains of marine organisms. The soils are calcareous.A great variety of timber trees stands out in the vegetation. Its fauna is that of the caves. The farmers of the place took may tons of bat “guano” (bat excrement) from this cave to use as fertilizer in their plantations, hence its name. Resolution No. 63, date: 09/28/1989.