i can't say i'd want to go diving off the coast here though. you wouldn't be able to see your hand in front of your face.
I've managed to find a list of diving companies in yarmouth so if anyone else was looking for somewhere. here's the list, although i havn't had a chance to ring any of them to see if they would fill bottles, but it's a start
Aqua Adventures Ltd
38 Nelson Road North
Great Yarmouth
TEL: 01493 302612
B C D Marine Ltd
Vanguard House
Vanguard Road
Gapton Hall
Great Yarmouth
TEL: 01493 444002
D S N D Oceantech Ltd
Eurocentre North River Road
Great Yarmouth
TEL: 01493 334400
Diversion School of Diving
20 Poplar Drive
Filby
Great Yarmouth
TEL: 01493 369996
Diversion Scuba Services
Eurocentre North River Road
Great Yarmouth
TEL: 01493 332856
Divex Ltd
Brinell Way Harfreys Ind Est
Great Yarmouth
TEL: 01493 657927
Diving Unlimited International Ltd
The Conge
Great Yarmouth
TEL: 01493 332676
Gorleston Marine Ltd
Pavilion Road
Gorleston
Great Yarmouth
TEL: 01493 661883
Nield Diving Contractor
1a Cliff Hill
Gorleston
Great Yarmouth
TEL: 01493 444463