Went to the Sand Dunes on 8/28-8/29. Reserved a campsite in the recreation.gov app a few days prior after watching for a while. We got site 29. Big enough for an rv but we only have a tent. The bear box was literally right next to the tent pad lol. There's restrooms with sinks for dishwashing. I didn't visit the camp store but I guess you can buy firewood there. No gathering wood from the ground. The park rangers patrol the area regularly. One got out and gave me a friendly reminder to register the plates on my vehicle. Nearby campers were quiet for the most part. People stood up kinda late but it really calmed down around 11. Overall, the campsite is in perfect proximity to the dunes. The sunset was amazing to watch. Our site had some obstruction from trees but a 100 foot walk and the view of the sunset was perfect.