The wreck of a small fishing boat, Bessa, lies below the pier at Furnace Quarry. She is known locally as 'the B200' as this appears to be the identification mark painted on her bow, although initial reports stated this as B2000. Bessa was registered in Belfast.
The wreck is a wheelhouse-forward fishing vessel of length about 12.2m. This vessel sank in 18m while secured alongside the south corner of the pier in Summer 1998 and lay inverted, oriented roughly NNW-SSE. The wreck was not stabilised, being supported by a single radar mast (a simple tube) close to the edge of a steep drop-off. She slipped off the drop off and now rests in deep water, lying on her port side, covered in silt and shrouded in darkness.