In front of the cave entrance is a large concrete poured structure with three distinct arches and the manmade Swan Lake.

[4] By 1931, the area had hosted numerous social events, including dances, concerts, and fairs, and was in need of repair and renovation.

A couple of local businessmen cleaned up the site, adding additional recreational facilities, including a concrete swimming pool, bathhouse, and tennis courts, and restoring and expanding the size of the hotel.

[5] The cave was the site of musical festivities and entertainment shows, which would host big bands like Benny Goodman's and Tommy Dorsey's.

Park specialist Amy Wallace, geologist and author Larry E. Matthews, local historian Billy Frank Morrison, and history professor Joe Douglas discovered the Native American pictographs and petroglyphs in January 2005.

In March 2010, a bat with White nose syndrome was discovered by researchers from Austin Peay State University doing assessments of species diversity and roosting patterns.

[2] Based on finding the infected bat, the State of Tennessee announced on March 24, 2010, that Dunbar Cave was closed to all visitors and tours were discontinued.

Since 2006 when the disease was first discovered in New York, it has spread to Ontario, New Jersey, New Hampshire, and Tennessee, causing the death of over a million bats.