Both routes mentioned involve being able to navigate. Hikers could also use the escape route for Rock Canyon to enter and exit out French Canyon, which takes you through 'The Barracks'. The high plateau route (there is no formal trail) will take you through pine trees and an array wildflowers then the terrain changes to slickrock before you finally drop into the canyon. I'd suggest hikers visit from Checkerboard Mesa and visit the Powell Plaque and Labyrinth Falls. Hiking - Begin hiking at the Wildcat Canyon Trailhead. The huge lake, part of sprawling Sand Hollow State Park, is also popular with campers, equestrians, and hikers. One of Utah’s most popular lakes, Sand Hollow Reservoir is an adventure playground for boaters, swimmers, and paddlers. There is no climbing involved for most routes, but it's a long day no matter how you slice it. The stocked trout love the cold water in the 185-foot-deep lake. Easy, family friendly, nice section of rock art where Wire pass joins Buckskin. The canyon slots up nice about 15 minutes from the trailhead and lasts for 15 miles. If you want to just explore for a few hours enter Buckskin at Wire Pass. Utahs slot canyons are found in Zion National Park at The Narrows, along Canyonlands National Parks Joint Trail, throughout Capitol Reef National Park. There is no better info anywhere on Buckskin.

What everyone is telling you is reverse the technical route and you can experience a really nice long section of slot canyon, but expect cold water with possible swimming.

Zion water slot canyon