Hi and thanks,
I did find the Garmin bluechart atlantic which I'm hoping covers what I need.
Anyway I downloaded and installed it correctly I think but with my older version of Mapsource it would open what appeared to be the whole chart of all of Europe pretty much, however Mapsource wasn't responding at all and I had to force a shutdown. This kept happening so I installed a newer version of Mapsource 6.16.3 and this now opens ok but isn't showing the maps. Would you have any advice?
Thanks again.