My husband and I stayed at Grapevine site 5 during park peak season. Sites 4 and 5 are at the very end of Grapevine Road. Sites 4 and 5 are close but there is plenty of privacy and you would never know there's another group out there close to you. It's about a 15-20 minute drive to get to 4 and 5. The road is dirt and gravel with a couple of areas with deep ruts but we were in a wrangler and did fine. A large SUV might do OK. Sedans would be questionable. It's obviously way out of the crowds since it takes awhile to get there. Sites 4 and 5 are about another mile after the Balanced Rock/Grapevine Trailhead which can get crowded during the day. We loved being out of the crowds. However, sight 5 had a lot of overgrown brush so you couldn't really see anything. Site 4 on grapevine has much better views (we would recommend booking site 4 over site 5). The bear/javelina box is nice to have (however I'm guessing most people would drive there). Since it's a NP, no fires are allowed which is a bummer while camping. There's also no picnic table. We did like that it is somewhat central to to park so it's easy to get to your day time activities.