Start in downtown Clayton to stroll Main Street, visit local shops and cafes, and use the town as a convenient launching point. A short drive leads to Mount Diablo State Park, where summit roads reward drivers with sweeping views and multiple pullouts for photos. The Mount Diablo Summit Road provides a memorable scenic route, but plan for narrow turns and limited shoulder space when piloting larger rigs. For longer hops, Interstate 680 is a major, well-maintained corridor that handles larger vehicles and offers frequent services useful for RV travel.