Anyone care to venture a guess as to what these brick constructions are? They are sited on a clifftop promenade about thirty yards apart, adjacent to the cliff edge railing - they have no vents, doors or access on any side, the top slab is also featureless. On the side facing away from the sea, just under the slab, there is a section of timber set into the brickwork. My initial thought was possibly a pedestal for coin operated binoculars (a common sight along the shore line) but there is no evidence that anything was ever fitted to the top slab. If it were some sort of junction box, then surely an access door would be necessary....