February 28, 2015 Chickamauga – Adam Evans (right) takes a break halfway up a bunch of boulders inside Frick’s Cave in Chickamauga, Ga. during the Southeastern Cave Conservancy Inc.’s open house on Saturday, February 28, 2015. Frick’s is only open to cavers one day a year due to the endangered grey bat that makes the cave its home. Each winter the majority of the bats migrate to different caves which allows people to explore the cave without disturbing the endangered species. JONATHAN PHILLIPS / SPECIAL