Useful Links

The Historical Diving Society: http://www.thehds.com

PADI: http://www.padi.com/padi/default.aspx

British Sub Aqua Club: http://www.bsac.com

Classic Diving Books: http://classicdivebooks.customer.netspace.net.au

John Liddiard Underwater Photography: http://www.jlunderwater.co.uk

Water Welders: http://www.waterwelders.com