Two brothers form a pyramid out of damp sand, while toddlers poke holes in the side and call them windows. Once the peak is finished, the young ones leave to swagger in the tide, and the oldest stays to change the sculpture’s shape into a man’s head. Seaweed becomes long hair. The sand man resembles John Lennon, with white roses for eyes. Gulls dive close, but are after our crackers and peach pits.