Did it last summer, well worth it! I didn't do the rappelling tour only because my kids were to young. Both wanted to do it but age wise it did not work out according to their website. It was just my boys and I and a just as we were getting ready to go another guy and his wife ended up on the tour too. As we walked past the rappelling part, the guide said oh they could have done that as long as I signed the waiver. If we would have had more time that day I would have done that too.