If we went southbound, the goal would be to get to Tierra Sur by 8:30pm.
If we left at 8:30am that would leave 5 hours for driving and 7 hours for activities.
How long would you spend at Big Sur, Hearst Castle and Morro Bay?
with small children, we went down and stopped in Santa Maria at the holiday inn there (capable and clean 2br suites for a lil over $100, and useful for the IHG promo...) and then went to Oxnard for a great lunch. We stopped at big sur at Julia Pfeiffer Burns State Park (note there is no reception around there so plot and download itinerary on google maps before u go) and took some great pictures and stopped every once in a while on the way, drive took 7+ hours separate from our major stops. picked up lots of Izzys bagels/pizza/tuna for lunch with enough for dinner, which we ate on the picnic tables at the park.
If u are taking the PCH the whole way, dont trust Google maps exact times, assuming random amazing view stops etc and slow cars in front will prob be 6 hours+. Was told by many the Hearst castle wasnt worth it with little kids.