If you spend your time looking into scuba news online you will be surprised at the amount of places many countries you can scuba dive. You don't need to just settle for America there are numerous sites out there to enjoy wherever you live and new experiences to find.

Iceland is a hot bed of areas you'll be able to dive in. Of course the North Atlantic is freezing so you need to make sure you are properly prepared and very well insulated. There is a dive site called Silfra which sits between two tectonic plates and is rated a top 10 Earth Diving Site by various diving magazines across the country.
The Silfra ravine located in the National Park Thingvellir near Reykjavik the capital city contains some of the clearest water you will ever see and some of the sights and details down one can find amazing to behold.
Another terrific site in Iceland is Akureyri. Strytan. This is one of the only scuba blog sites that highlight these areas and maybe they are well worth checking out. That Akureyri. Strytan is home to one of several world's biggest geothermal chimneys. This chimney is the only one of its type that you are able to dive at and it is something you will remember for a very long time.
Diving in America is a fantastic experience but as long as you don't mind the cold it's well worth checking out Iceland if you prefer them destination. This way you hold the best of both worlds. You may enjoy the clear waters with the Blue Grotto in Williston Florida plus the Silfra in Iceland and compare and contrast those experiences. You could even set up a
scuba news of your own with the amount of photos you are bound to take of those great sites.