When I went only half of the cave was open due to the bats occupying the other half of the cave. I had gone through the cave 15 years ago and it is very different than it was in the past. If you have never hiked through a cave, then it is still a great experience, but if you go on the weekends don't expect to be alone. This trail gets extremely crowded in the afternoons. The length of the hike to the lake is a perfect length for a family going on a picnic.