Related LinksTo protect the inner canyon wilderness and your experience therein, please familiarize yourself with these important regulations and guidelines before you go. Basic Regulations
Wilderness Safety
![]() NPS/Ethan Crump Leave No Trace Ethics
Campfires ProhibitedDams upstream prevent a natural flow and cycle of driftwood entering the lower canyon. What little organic debris makes its way through the canyon is a vital resource for the recycling of nutrients back into the riverbank and the earth. If you see an old fire ring, please don't be tempted to use it. Bring a small gas stove for cooking in the inner canyon. Wilderness Use PermitsPermits are required for all inner canyon wilderness use - both day and overnight trips. How to obtain a permit varies by season and location. See information below. North Rim Permits
South Rim Permits
Peak season reservations/permits (May 1–October 31)
Off-Season Permit Process (November 1 - April 30)
Climbers and KayakersClimbers and kayakers must obtain their permit on the day of their adventure. There are permit self-registration kiosks with instructions when the visitor center is closed. Be sure to thoroughly complete the permit with accurate and legible information. Why are permits required?Permits help us monitor use of the wilderness and protect it from resource damage and overuse. They also help us identify potential emergencies by letting the park know about your expected itinerary. Where can I go without a permit?
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Last updated: June 4, 2025