I like this colour combination - blues and purples are delicate colours (unlike reds, oranges and greens) so to see them well balanced like this was nice.
Sand Formed Around Sailboat Hull
I think this sailboat has been on the beach for a while - the sand has been formed by waves washing around the boat. I suspect the keel is buried into the sand. The hatch on the front deck appears to be broken.
Barge On The Rocks
I believe the rocks are part of the groyne used to preserve the beach. This barge normally holds sawdust and broke away during a storm.