Here in the UK we traditionally have bonfire night on November the 5th. In the past boats that are abandoned usually go on the sailing clubs bonfire to make way for new more active members. This was easy with wooden boats and an angle grinder works fine for GRP boats. That said we have our bonfire on the beach and with the strong prevailing south westerly winds we have I am sure the fire gets up to a temperature that could easily deal with the aluminium masts and beams of a cat.