Do you need any kind of license or stamp to camp here? And are they’re any cooking facilities

This is really a very primitive area. There is one restroom at the trailhead mentioned above. That's it. There is no other mid-trail support or facility. I think people sometimes underestimate how basic this place is. It's extremely beautiful, but also very natural.

Overnight camping is not allowed here and there are no cooking facilities. For parking, there is an honor box at the trailhead containing parking passes.