River Styx Modified Tour

Mammoth Cave National Park


$22 Adults, $16 Youth, $11 Senior Pass Holder, $11 Access Pass Holder.

Location: LAT/LONG: 37.187140, -86.101410

All cave tours in the park start and end at the visitor center.

Repeating Event


Every day


June 06, 2021 to June 30, 2021


11:30 AM, 1:00 PM


2 hours and 30 minutes

Type of Event

Guided Tour

2.5 hours


Following along the Historic Tour Route, this tour focuses on the unique geologic and natural history of Mammoth Cave. Including a brief side trip to the underground water level, this tour takes an in-depth look at the millions of years of formation of Mammoth Cave. This tour is ideal for visitors with a high interest in geology. 

Please use extra caution when visiting the river level. To access this section of the cave the tour leaves modern tour trail to uneven terrain that may be wet, muddy, and/or slick. The tour route travels next to bodies of water, some of which can be very deep depending on river levels. Viewing of this area will also be conducted with electric lanterns and not the modern lighting system on the rest of the route.

This tour covers the entire Historic Modified Tour route. Limited sections of the Mammoth Passage Modified Tour and Discovery Self-Guided Modified Tours are also seen.

Reservation or Registration: Yes

Reservations are strongly recommended.
Make Reservation or Register