Often the hikes of Zion get all the attention, primarily due to their ease of access, you don’t need any real special skills or equipment to go hiking. But there are some amazing canyons in Zion that are accessed only by rappelling, and one of our favorite is Pine Creek.
In comparison this is a fairly easy canyon, but it offers some great rappels down some amazing canyons. It does have some swimming parts though (usually) so be prepared to get wet. Pine Creek is a fantastic canyon to do in Zion, so if you get the chance to do it, make certain you take it.