BLOUNTVILLE, Tenn. -- Haunted Appalachian Caverns is the Tri-Cities' "number one underground haunted attraction," said spokesman Rob Metcalfe.

Haunted Appalachian Caverns is open Friday and Saturday nights, 7 p.m. until midnight, through Nov. 3. Regular admission is $15, or "fast pass" admission is $30.

Fast pass admission "takes you to the front of the line ... no waiting," Metcalfe said.

The attraction is located at 420 Cave Hill Road.

Appalachian Caverns has "a long history of getting screams, whether from real ghosts that lurk on the property to the haunted attraction in October," Metcalfe said.

"While Appalachian Caverns has been around for a very long time, Haunted Appalachian Caverns is celebrating its eighth season."

The attraction's website continues, "For many years, the cavern lay in silence broken only by the sound of the water, the animals that called it home, and the occasional human who made their way into it. It was home to many wild animals, used by local people as a home, celebrated by the Native Americans as a place to hold special meetings, a weekend hangout for local kids, and had many other varied uses down through the years.

"In 1991, it was opened to the public as a show cave for the first time in its' long and varied history.

"Since that time, the caverns have had many visitors through its magnificent chambers. It is a bat sanctuary for the endangered gray bats, as well as home to six other species."