City of Chandler: Lava River Cave Excursion (#4NC609)
Explore the mile-long, wave-like lava tube cave in Flagstaff, Arizona. Formed roughly 700,000 years ago by molten rock, the cave presents a chance to unearth nature's creativity and learn firsthand how volcanic heat causes rock to partially liquefy and drip. Ages 18+ Meet at bus in Tumbleweed parking lot