Ray Roberts Lake State Park - Isle du Bois Unit is on Ray Roberts Lake's south side in Denton County. The Isle du Bois Unit (meaning "Island of the Trees"). There are so many things to do here while watching the scenery. Activities like camping, hiking, biking, ride your horse, rollerblades, and backpacking. There are also water activities for kids; they can go fishing in the pond or the lake, this can do with adults. Everyone is welcome here to see and wander in the interpretive center, wherein you can see animal skins and skulls and learn about the park's information. For more info and inquiries, please call (940)-686-2148.