Overlooks Monkey Creek. Access 800m south east of the road intersection of Valley View Road and Bells Line of Road. Postal address is 213 Chifley Road, Bell. This huge sandstone cave has a height of 25m and a depth of 20m. Hatters Cave is set out with lighting, cooking, tables and chairs and is available for renting out. It is approved as accommodation site by Lithgow City Council. Named by the owner, Mark O'Carrigan, in 1981, when he was exploring the area. In a previous career, Mark was a professional hat maker. Note, this cave is on private property.