I'd love to hear what it's like sometime! Although I've visited the Canary Islands, I didn't dive and often wondered what I missed.Redshift wrote...
metridium, I've never dived in Madeira itself but, I've dived in Porto Santo wich is another island of that archipelago. Wonderful dives!
I'd also love to get out to the Azores at least once. Have any of our Portuguese or other members been diving there?