Canyons are inherently risky. Flash floods occur without notice on sunny days. Technical skills & surrounding topography knowledge required yet does not eliminate risk.
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The long route may have rappels up to 170 ft, the shorter route (which we did) has rappels up to 100 feet. The 2nd to last rap into the narrows is only 100 ft despite online beta indicating it was 160ft. With a zipline it may be 160 ft of rope.
Can be done as a hike or a technical canyoneering trip.
Check out the Official Route and Triplogs.
WARNING! Hiking and outdoor related sports can be dangerous. Be responsible and prepare for the trip. Study the area you are entering and plan accordingly. Dress for the current and unexpected weather changes. Take plenty of water. Never go alone. Make an itinerary with your plan(s), route(s), destination(s) and expected return time. Give your itinerary to trusted family and/or friends.