Leucadia's Kirkos' (aka Kirk Van Allyn) latest creation.  Periodically, we are lucky to stumble across Kirkos' work along Encinitas' beaches — namely Grandview, Beacon's, or Stonesteps.  This one took us by particular surprise due to the extreme low tide that late afternoon.

You can see Kirkos in action here and here.  

(click on image for full size)