One major river cave and a few smaller systems. These are obviously part of the Co. Fermanagh systems, but the border lies partly over the limestone. The river cave is now accessed only from Co. Fermanagh, even though most of the cave lies under Co. Cavan, and was originally entered from there. As a result, it can be found in the Co. Fermanagh section.
No caves are in a national park or area of outstanding natural beauty.