Pier 17, with Treasure Island in the distance.  Wednesday, September 23, just before going into Tcho Chocolate to attend Dorkbot.

These strange scalloped wave patterns were seen from the Coast Trail just north of the Palomarin Trailhead at Point Reyes National Seashore.  The picture was taken on July 8, 2009.  They’re visible in Google’s satellite view, too.