No permit required. Must be licensed, etc. Have a great time
It is madness to allow boats and jet skis to go at full speed in the Rio Colorado, absurd but true.
I don't believe there are any permit requirements for going on the river, but you'll need to make sure you've registered your craft (usually with your home state; like registering your car)
I didn't see any posted permitting requirements. To confirm it might be best to call the park.
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