Richard Milbauer, top, and Heather Shearer use night-vision modified video cameras to record the Haunted Historians tour of Colossal Cave and the park grounds east of Tucson. Chloe Flanders, left, and ...

"Did you know an amphibian can breathe through its skin?" Ed Moll, a member of the Tucson Herpetological Society, asked guests who visited Colossal Cave Mountain Park for its Sunday in the Park ...