Back Blip - Sand Castles

CC always wants some help to build some sort of sand structure.  Fortunately I got the pass on big cakes which were in fashion last year. 

This sand castle doesn't show too well in the photo, but I can say that I took inspiration from watching the Lord of the Rings trilogy the week before.  :)

Four entries and four points to the compass and a deep inner moat with tall bridges to the inner group of castles...  (see the extra)   Could be a theme developing here.