Stayed at this little guest rental on the west side of the island last summer and it is committed to memory as one of the most idyllic places we've vacationed. Beautiful architecture in a converted barn/boathouse (the bathrooms just swept you away, one surrounded by a beautiful rose bush and the other a cool open-air shower). Gorgeous vista over an open field to the west and south view of the harbor (Deer Harbor). It was AWESOME on the night of 4th of July to be able to view the fireworks from the living room while the kids slept.
Kids also loved the chicken flock that cruised through the gorgeous yard every day and the donkeys grazing in the field. Wonderful spot for a small family to get away and enjoy the San Juans.