# Underwater lake
The Peppersauce Cave is an Arizona hidden gem complete with an underground lake
Peppersauce Cave is a hidden explorable limestone cave within the Santa Catalina Mountains. People who want to hike this small, cavernous system can expect to walk about one mile of mapped underground pathways. It’s not for the casual explorer who is used to handrail assistance and helpful amenities, but the difficulty level might be okay for beginners.