Not a great fan. Either beach or zip line, but that is the sum of your choice. There was also local goods at the shops, but nothing worth buying unless you felt guilty for the starving people begging you to buy something. I did not feel very safe in this area and was relieved to get back on the ship. Dont bother if you are over 40.
Very interesting, especially if you can get the free trolley tour which shows you the whole of San Juan Island. Again, a very poor and broken island, with some dodgy areas you would not want to walk down. Historically interesting, but a quick walk into town and back would be enough.