Valley of Fire State Park near Las Vegas, what to do

They set up several hiking trails, shaded picnic sites, and 2 campgrounds. It's neat and most of the sites are equipped with tables, water, grills and restrooms. They charge $12 per vehicle/per night camping if you want to use the campgrounds, if not, it's only $5 per vehicle. But your choice depends on the weather, because sometimes it gets so hot that one can't remain more than one hour inside the park.