Lyndon Wigmore has posted:
This sculpture, made of cast iron plates, stands on the Belgian Coast slightly west of Middelkerke. It commemorates the fact that several of these beasts were used over the course of a couple of years to re-shape the coastline repairing the damage caused by coastal erosion. Underneath the machine, in the centre, was a geocache attached to the metal plates. In order to retrieve it, you had to lie flat on the floor and wriggle your way into the centre of the machine, avoiding the sharp edges.