We visited the Indian Echo Caverns in Hershey Pennsylvania this past summer while on a trip to Hershey. It is in a nice location right off of the main highway and is very easy to get to, so that was very nice. You enter through the gift shop, which is very nice and big, then sign up for a tour and pay, Admission was around $40.00 for the four of us. Then you wait for your time and your tour guide calls your group of about 25 people or so. The tour guides are very knowledgable of the area and the history of the caverns and can answer any questions, so we really like that. The caverns are over 100 feet under the ground and are very neat. The children loved this! The only thing negative I can think of is that there isn't anywhere to eat on the premises. Although there are picnic tables so you could take your own lunch, and there are restaurants up the road.