DV Diving - Northern Irelands premiere dive school DV, Diving, Northern Ireland, scuba, marine, Boatmaster, diving courses, holidays, Ireland, Irish, Technical Diving, TDI, courses, training, instruction, divemaster,Strangford Lough, Irish Sea, Belfast Lough, Newtownards, Portaferry, Bangor, County Down, UK, Britain, Europe, Marine, British Sub-Aqua Club, BS-AC, BSAC, Advanced Instructor, Nitrox, Tri-mix, Extended range, David Vincent, Tony Vincent, Wrecks, Sales,Service, cylinders, regulators, dry suits, wet suits, PADI Five Star Centre, recreation,activities, Powerboat, RYA, Royal Yachting Association, TDI, Technical Diving International, RIB, scuba gear DV Diving is a divecentre based on the edge of Strangford Lough, Northern Ireland.