There is a designated swimming area in the campgrounds.  Beautiful, wooded park with large lake that has a section for watersports and fishing.  I wish we had stayed here for more than one night. Definitely a place to return for a visit.  It is a little remote, but there was cell phone reception. Perfect for biking/scooters/walking/swimming.

I will try to stay on the outer rim the next time we go, so that we can enjoy meals by the water.