The National Park Service was intrigued by their reports of high , narrow passageways , huge rooms and unusual speleothems ( cave decorations ) and opened a new tour route .
The Conns discovered what is now the Scenic Cave Tour route in 1961 .
The National Park Service was intrigued by Conns ' reports of high , narrow passageways , huge rooms and unusual speleothems ( cave decorations ) and opened a new tour route .
The Conns discovered what is now the Scenic Cave Tour route in 1961 .