route 4 heysham eng belfast n irl

Sea Containers operate the widest range of ferry services on the Irish Sea, linking Ireland, England, Scotland and the Isle of Man. Since 1992, they have operated Seacats on all routes. Seacats are car-carrying catamarans and are twice as fast as conventional ferries. The Seacats have now been joined by a new fleet of fast ferries - the SuperSeacats. These ferries combine all the advantages of the Seacat with an even greater carrying capacity. In 1996, the company acquired the Isle of Man Steam Packet Company, the world's oldest ferry enterprise, which now operates four routes between that island, Ireland and the UK.