There happens to be a really nice 30 mile loop along the edges of Blue Marsh Lake. In fact, this multi-use trail is an official National Recreation Trail, which means you must get out and enjoy at least some of it! The trail is used by mountain bikers, equestrians, hikers, and runners alike. There are only a few climbs along this trail, which makes it a good one to attempt one day long-mileage adventures. It's an even nicer trail in the summer when swimming holes and concession stands are open! Those looking for shorter adventures can explore many of the side trail options around the lake.