While overall for RV campers I think Quarry Cove is the nicer setting on Nimrod Lake, if you're going with a tent or a group then Carter Cove might be the best choice. There is a side dirt road that leads to primitive group campsites near the lake. If you plan to use the Primitive area, make a phone call to the Army COE first, as they require you to fill out a permit. Though there is no bathhouse or water in that particular area; it is secluded and offers a lake view. I am not aware of any hiking in the area, but you can bike along the roads or put a kayak or canoe in the water. Fishing would also be fun. In the Carter Cove campground, one of the loops is set up for groups, with campsites connected by short trails. Call ahead if you plan to make use of those parts of the campground. If you are bringing a camper, be aware that many sites share water hookups so the spigot can be far away. Bring an extra hose - a long one.