You shoes will get soaked so wear flip flop/sandal...

You shoes will get soaked so wear flip flop/sandal if you can, then change when done with the tour, unless you enjoy wearing soggy shoe/sock for the remain of your day. The Cave of the winds , however, will provide you with disposable sandals and bag to change/store your shoe prior to the tour. The falls at night are illuminated with changing colors, fire works at 10 PM