This is a great excursion only an hour or so outside the city. Clayton provides all the gear, you just show up and enjoy. He can teach you if you are a novice, and give you pointers if you are already proficient at sailing.
We did an overnight to one of the islands and camped in a great location. The views were amazing and there were trails for exploring. The next day we saw sea lions at lunch, and caught some good wind for our final sail back to the launch area.
The location is easy to find at a local park. The services are sparse, so bring all you think you’ll need before you get to the park. You won’t have any last chances to buy sun screen, refreshments, etc.