Lava River Cave
Flagstaff
Lava Tube
Lava River Cave is Arizona's longest lava tube, stretching three-quarters of a mile underground and maintaining a chilly temperature between 35 and 45 degrees year-round. This unique natural attraction is completely free to visit and requires no reservations, offering a rugged and accessible subterranean adventure.
- Dress in layers for 35-45 degree temperatures
- Wear sturdy footwear for the rugged terrain
- Bring multiple light sources for the dark tunnel
- No reservations or fees are required
- Plan for a 0.75-mile underground trek
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MondayOpen 24 hours
TuesdayOpen 24 hours
WednesdayOpen 24 hours
ThursdayOpen 24 hours
FridayOpen 24 hours
SaturdayOpen 24 hours
SundayOpen 24 hours
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