Beach Defence Post MB0 is located on a small peninsular overlooking Mellieha Bay. It is a single storey structure and the walls appear to have been built primarily with local bricks, although the roof is concrete. The structure is now in a derelict state, the roof having fallen in. It is thought that this is the only pillbox in Malta built with breeze blocks and it appears to be very crudely constructed.
The images with the roof intact are from 2014. By 2023 the concrete roof had fallen into the Post.