We left Pier 39 yesterday.  Being in the heart of old San Francisco was great but Pier 39 is not on my top 10 marina list. First, there is something in SF city marinas called “surge”.  This is very bad and causes the boat to fly around in its slip in random gyrations that cause much commotion below decks.  We were told that Pier 39 is amongst the worst for this particular oceanographic phenomenon.  The next problem that kept us from getting much sleep was associated with our neighbours who invaded adjacent slips in the evening and cavorted about in lascivious ways with much obnoxious noise until the following morning when marina authorities turned the hose on them, driving them into the water.  Cute and furry but loud and irritating. Photo attached.