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Colossal Cave is located in southeastern Arizona. It is about 22 miles SE of Tucson near the Saguaro National Forest. The cave contains about 3.5 miles (5.6 km) of mapped passageways. The internal temperature of this cave averages 70 degrees Fahrenheit (21 degrees Celsius) year-round. The temperature of an Arizona summer can reach over 100 degrees Fahrenheit so living in the cave might be an inviting option. The guided tour was about one hour. The cave was illuminated by lights hidden in the natural rock formation in the cave. The cave had many beautiful stalactite and stalagmite formation. Visiting the Colossal Cave was a great experience.
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