As taken from the Mammoth Cave National Park website here is the information about this tour:
Domes & dripstones Tour
Take a 4 mile bus ride from the visitors center to the New Entrance to Mammoth Cave. Descend approximately 280 stairs through a dramatic series of domes and pits. Continue the journey through large Mammoth sized passages and conclude the cave experience as you take a short walk through a variety of dripstone formations. The tour exits from the Frozen Niagara Entrance to the cave where visitors board a bus for the ride back to the visitor center. It's a great way to see the many faces of some of Mammoth Cave's passageways. ***This your includes the entire Frozen Niagara Tour route.
Duration: 2 hours Distance: 3/4 mile
Total Stairs: 500 including the initial 280 on the staircase decent
Difficulty: Moderate Tour Capacity: 118
We took a bus like this one to the cave entrance.
|Hopping on the bus back to the Visitors Center|
We loved the tour and hope to visit and do a different tour again sometime.