There are 3 miles of shoreline, 6 miles of hiking trails and is open all year. It has a dune formation that rises 260 feet above the lake, which, I'm proud to say, I climbed. The view was spectacular! I watched a group of teenagers roll to the bottom and another bunch jump over the opposite side (which was quite steep) onto a pile of sand. We had to keep a close eye on the 3 year old as she wanted to do the same things as the older kids. She did climb the whole 260 feet herself just holding her dad's hand.
Here's a couple of sites to check out and some photos of the dunes: