Bruneau Dunes State Park is a hidden gem in Idaho just 20 min off I-84 in Idaho not far from Boise. There is a small field of sand dunes in the park and the largest dune is the largest active dune structure in NorthAmerica. A couple of lakes and ponds are also found at the base of the dunes. There are 3 campgrounds in the park, one is an equestrian one. Only the outhouses are open in the winter and water and showers are turned off in winter but electrical hook ups are still available. Great views of the sand dunes from the campgrounds as well. Marginal cell reception with Verizon. Signal too weak for AT&T.