MARINE PARADE 1. 5282 (South Side) Marine Town, Sheerness Grotto-shaped folly to north-east of Ship on Shore Public House TQ 97 SW 11/81 II 2. Circa 1830. This Grotto was built by a farmer who found a ship's cargo of cement in barrels washed up on the coast. As the barrels had become soaked with sea water the cement had set to form barrel shaped blocks which were used to build the folly's walls. 1 storey built of cement blocks, flint and burr bricks. 5 pointed arches, now filled in by weatherboarding. Parapet with a succession of curves. Listing NGR: TQ9354674882