Pinnacles National Park is a must-see natural area within easy driving distance of Greenfield, offering rugged spires, talus caves and hiking trails accessible from established trailheads and parking areas. For coastal scenery and marine wildlife viewing, a day drive out to the Monterey Bay shoreline rewards with scenic viewpoints and seafood towns reachable on paved roads. Highway 101 provides a familiar, truck-friendly route for longer legs of the journey, with wide lanes, regular rest areas and plenty of places to stop for provisions—making it suitable for larger RVs. Planning routes around daytime traffic and known truck lanes helps keep a campervan trip smooth and enjoyable.