Alex and I had planned to drive down to Monterey (about two hours away from SF) to visit the big aquarium since i had never been. On the way there we passed through Pigeon Point lighthouse in Pescadero, which added on about an hour to the trip but it was absolutely worth it. We drove along the coast and the scenery was beautiful. The lighthouse was built in 1871 and is actually the tallest lighthouse on the west coast of the US (tied with Point Arena Lighthouse). I highly recommend planning a little trip to anyone in Northern California, you could also make a stop in Santa Cruz! It's very close to the lighthouse.