We are travelling as a group of four spending 3 nights ie two days in San Francisco in August. On the first day we have booked a Dylans tour and seats for a San Francisco Giants baseball game. On our second day we were hoping to see a bit of the coastline plus some 'quiet' time in a Redwood park. So our plan is to rent a car for the day and head down the coast to Santa Cruz and head back to SF via Hwy 9 spending some time at the Henry Cowells Redwood state park. Would we have enough time to spend a couple of hours at Santa Cruz and Henry Cowells and be back in SF by 4pm. Is this a picturesque drive?