Spotting surfers along the Pacific coastline is not too tricky.  Anywhere with beach access is likely to have someone who has gone in to the water with their board.  However, an unmanned surfboard is not a common occurrence.  As we were motoring across Monterey Bay, we came across this board.  It is an unmanned research platform with a number of instruments to monitor the bay.  Apparently it is powered and can cruise itself around the bay and radio back its readings to the researchers on land.  A curious looking thing!