We initially visited the MegaCavern to tour lights under Louisville a couple of years ago. This was our second visit to the MegaQuest. My 7 year old grandson and I enjoyed it so much the first time we had to come back and tackle the zip line. He wasn't quite ready for the elevated obstacles so we are already planning a third visit later in the summer to attack those! He doesn't know it but the quest is every bit as good of brain exercise as it is physical exercise. Utilizing the gear and navigating the course is excellent for neuro-reorganization. I love watching him work through the challenge and push himself to 'do it afraid'. Wonderful experience to see the elation in him when he conquers his fears! We also did the tram ride this time and it was fascinating to learn about the cavern's history. The ride after the quest was a good change of pace too!