Indian Hollow

Indian Hollow is the boundary of Grand Canyon National Park and Kaibab National Forest. It's a long walk, but the Redwall narrows are very pretty (top 36.49624977237374, -112.5813943052291), most frequently visited from below in Jumpup canyon. The Supai narrows are short (36.475014851139186, -112.57226902992588).

You can walk down the wash from Indian Hollow campground, but most hikers visit the bottom end from Jumpup canyon. Or, the North Fork: https://ropewiki.com/Indian_Hollow_(North_Fork)