Off AZ Hwy. 90. Reservations strongly recommended. Park entrance fee $6/vehicle; free with tour reservation. Rotunda/Throne Room tour: $23.00/adults, $13.00/children 7–13, children under 7 $5. Big Room tour: $23.00/adults, $13.00/children 7–13, children under 7 prohibited. Park open 7 days/week, 7:30 a.m.–6 p.m. Tours run 8:20 a.m.–4:20 p.m. Reservations taken from 8 a.m.–5 p.m., each day. Allow at least 3 hours for entire park experience; cave tours last about one hour each. Photos and video equipment prohibited.
One of the great natural wonders of the western United States. It’s believed that no human had ever seen this huge living cave prior to its discovery in the 1970s by two Tucson cave enthusiasts. Care has been taken to preserve the pristine conditions within. Remarkable because it is a “wet” or “living” cave, meaning the calcite formations are still growing. See a stunning variety of multicolored cave formations.