You will find this cave in the Peach Springs area unsurprisingly close to the Grand Canyon. Formally discovered in 1927, this now-protected cavern system has limestone walls that are reported to be “geologically identical” to the cliffs of the famous canyon. It is the largest dry cavern in the world.
In order to reach this admittedly eerie cave system, you must ride an elevator 21 floors, between 200 and 300 feet. Upon arrival, you have a choice between four different walking tours of different difficulty levels. An advanced tour will take you deeper into less visited areas of the cavern system and involves equipment.
The beginner tour is family-friendly and fine for all interested parties. It’s just a comparatively short walk that focuses on the larger sections of the system. If you are visiting the Grand Canyon and have additional time, a visit to these caverns will add even more adventure to your vacation. Fees vary according to your tour choices.
Peppersauce Cave, less than 10 miles from Tuscon in Oracle, is actually a system of limestone caves. Specifically located in the Coronado National Forest, it can only be reached via dirt roads that are reportedly poorly maintained. While there is a roadside sign directing you to the official entrance, there are no tours offered.
Despite featuring its own lake, the cave system remains in a primitive state. There are no visitor facilities either. You must squeeze through a tight opening in order to get inside.
The rocks here are generally wet and slippery so along with the required headlamps (preferably on helmets), experts strongly recommend visitors wear non-slip shoes too. Knee and elbow pads aren’t a bad idea either. Do not visit if rain is in the forecast as the water levels here can rise dangerously. The “Big Room” and “The Rabbit Hole” are popular places if you prefer assistance in accessing parts of this system. Admission is free.