Start with the Huntington Library, Art Museum, and Botanical Gardens, a landmark with extensive grounds and visitor parking that make it an easy day destination when you unhitch a fifth wheel near San Marino. For a scenic drive, follow the I-210 east toward foothill routes that lead to canyon overlooks and winding roads ideal for daytime exploration. The Arroyo Seco corridor offers parks and picnic areas with roadside parking where you can stretch your legs after leaving a towed unit at an RV-friendly site. Plan routes ahead and check parking and clearance restrictions for larger rigs to ensure smooth access to viewpoints and trailheads.