We had a nice two day stay at Jacksonville North KOA. The pull through sites were close together, as is typical of these commercial campgrounds. Smelled like sewer throughout the campground. The playground would have been nicer if it was maintained appropriately. Not much to do in the area. We visited mill ruins which was cool. Were going to go to Cumberland Island, but it would have been $200 for 1 adult and 3 kids with bikes. Yikes.