At the Powers Island unit there is a grass area with picnic tables near the buildings that would work. It is sometimes a staging area for people that bring their own rafts. The parking lot is paved. As of right now, the restrooms are still closed but there is a drinking fountain you can get to. If you Google maps the address and look at the satellite view you will be able to see the area.
No. There is a gravel parking area, trails, and the river.
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