There are three principal cave/karst systems in the Boho area, namely the Boho Caves, Reyfad-Glenkeel and Noon's Hole-Arch Cave system, situated under the mountains of Belmore, Tullybrack and Knockmore respectively. Many of these caves were first explored by local people, but the first detailed exploration and surveying of any caves in the area was undertaken by two cavers known as Édouard-Alfred Martel (the father of French speleology) and naturalist Lyster Jameson in 1895.