If your looking for a quick fun drive on Thanksgiving in the San Fransisco Bay area, I recommend Alice's Restaurant. Every year on Thanksgiving Alice's Restaurant donates 100% of there proceeds to the Second Harvest Food Bank. The food and atmosphere are worth the drive and it makes for a great story on how you went to spend Thanksgiving at Alice's Restaurant and helped out the community.
If you can't make it for Thanksgiving go up on a latter date and enjoy the food the drive and the view. Located in the hills of Woodside Ca, Alice's is premiere destinations for local Cyclist, Cafe Racers, Sport Bikes, Cruisers, Hot Rodders, Muscle Cars, Ricers and Exotics. You will see more cars and bikes during the Spring and Summer. I believe that if you stay in the parking lot for an hour you will see just about every thing with wheels go by. Make sure to bring a camera there is a lot of good photo ops. Alice's is located at 17288 Skyline BLVD., Woodside, California 94062.