Deep Darkness - Indiana Caverns

Deep Darkness

Experience 4 hours of underground challenge

Notice: Deep Darkness has grown in popularity! Please call Monday through Friday and ask for Jan to discuss dates and options.

Ready to take on an epic cave exploring adventure? On the Deep Darkness adventure, you will descend into darkness, climb, crawl, and splash your way through the underground stream. Continue upstream on a kayak. Experience 4 hours of underground challenge in Indiana’s longest cave system. 

Girl in large Cave room on Deep Darkness at Indiana Caverns
Man decensing into Deep Darkness Caving at Indiana Caverns
Group before Deep Darkness Caving at Indiana Caverns
Group after Deep Darkness Caving at Indiana Caverns

Guidelines & Requirements

Group Size & Price

For safety, a minimum group size of 3 persons is required. Individuals may be added to your group. Max group size is 9.

Group SizeAge*Cost/ Person
1 – 3**14+$120
4 – 514+$110
6 – 9***14+$100

*Anyone aged 14-17 must be accompanied by their parent and weigh at least 100 pounds to fit our harnesses.

**If you have less than 3 people, you can contact us and be added to a waitlist to join another group.

***For Scouts & Organized Youth Groups a minimum of 2 adult leaders (can be non-parents) are required. Leaders are included in max groups size of 9.

Physical Condition & Waiver

This trip is physically challenging. You must be capable of climbing a 93-foot ladder on belay to reach the remote lower level. Everyone must weigh 100 pounds or more. Chest size 48 inches or less to fit harness. Everyone is required to print and sign our waiver due to the inherent risks associated with a cave exploring trip of this difficulty.

  • No Heart Problems
  • No Back Problems
  • No Inappropriate Body Size
  • No Significant Physical Limitations
For safety, we can disqualify anyone not fit (weight or health) for the trip.

*Must speak to staff 3 days prior to trip to confirm your reservation.

Waiver of Liability  

Print Your Checklist  

Availability & Start Time

Although trips can be scheduled 7 days a week, we must confirm we have an available guide on the day you’d like to go. All bookings made for Deep Darkness must be confirmed by calling our office at (812) 734-1200. The starting time Deep Darkness is 9:30 am EST. Arrive at least 30 minutes early. Plan on being here a total of 6 hours from arrival to departure. Your trip will last 3.5 – 5 hours.


Reservation and FULL payment must be made at least 10 days prior to trip.


Call a minimum of 10 days before your trip to cancel and receive a full refund. If within 10 days, you must reschedule or your payment is forfeited. There are no refunds for opting out after arrival.

Because this trip includes kayaking on an underground river all trips are subject to possible cancellation resulting from major rainfall events. If weather forces trip postponement, you can reschedule any time within one year.

There are no refunds.