Take side trip to Grand Canyon Caverns Millions of years ago, a massive system of underground caves and passageways began to form in limestone. The result was a natural wonder which today is known as Grand Canyon Caverns. The first foreign explorer to find the caverns was a wood cutter named Walter Peck in 1927. Peck, who was known as an industrious person, began the first tours lowering people one by one by rope 150 feet into the caverns for 25 cents. Today, visitors are lowered 210 feet into the caverns in a modern elevator.
Visitors then walk on well-lighted paved paths to view the illuminated caverns.
Tours of the caverns take about 45 minutes. The tour guides point out geologic formations and provide interesting facts. Twenty-one stories below the surface, visitors can experience the earth's ancient past by seeing a replica of a giant ground sloth extinct for 20,000 years, as well as the remains of a mummified bobcat. The Grand Canyon Caverns is open year round except Christmas. There is no gas station, however.