Freediving UK 2013 trip to Iceland, 3 days in Iceland, freediving in the famous Silfra freshwater 'crack' (the gap in-between the continental plates) and a couple of other great spots. Silfra is one of the worlds top dive sites and if you can brave the cold it is spectacular, with crystal clear water, so pure you can drink it.
If you want to learn to freedive then check out their website.
