Leave LA Saturday and stop in Santa Barbara for lunch — State Street has options, eat outside. Push on to Pismo Beach before dark, grab a room, walk the pier. Sunday is your long day: Hearst Castle in San Simeon opens at 9 AM (tickets $25–$35, book ahead at parks.ca.gov — walk-up availability is unreliable on weekends), then Big Sur for the afternoon. Bixby Bridge is the shot everyone takes; pull off on the north side for the full view. McWay Falls at Julia Pfeiffer Burns State Park is a ten-minute walk from the parking lot and worth it. Monday: Monterey Bay Aquarium opens at 10 AM ($55 adults, reserve online), then Santa Cruz for the afternoon — drive West Cliff Drive, skip the Boardwalk unless you have kids. You'll hit SF by early evening with time to land before your Tuesday flight.

Practical notes: gas up whenever you see a station in Big Sur — stretches go 30-plus miles with nothing. Cell service drops out completely in sections, so download your maps offline. Highway 1 south of Carmel can close seasonally for slides; check Caltrans QuickMap before you leave Pismo.

If you only have two hours total in Big Sur, park at Pfeiffer Big Sur State Park, walk to the valley floor, look up, and eat whatever you brought. That's the whole thing.