National Park Service Rules

One-Trip Per Year

Due to limited availability, the National Park Service has limited use in the popular Lees Ferry to Diamond Creek section of the Colorado River to one recreational river trip per individual each calendar year.

Because of this regulation, Outdoors Unlimited cannot accept a reservation from any individual who has or will participate in any other full or partial canyon commercial or non-commercial river trip within the same calendar year. If you have already completed or have plans to participate in any other Grand Canyon River trip this year and would like to go again, please respect your fellow boaters by waiting until next year or sometime thereafter to book your next trip.

Grand Canyon National Park’s one-trip-per-year rule is strictly enforced. To ensure compliance with the One-Trip Per Year Rule, the National Park Service requires that Outdoors Unlimited report the full legal name and date of birth of every river passenger.