 Along with its use as a military, fishing and yachting port, it is also a cross-Channel ferry port, with routes to the English ports of Poole and Portsmouth, the Irish ports of Rosslare Harbour and Dublin, and St Helier on Jersey.Limited by its geographical isolation from being a great commercial port, it is nonetheless an important shipbuilding centre, and a working-class city with a rural hinterland.On Wednesday, 10 April 1912, the RMS "Titanic" crossed the English Channel and docked here at 7