I scuba dive a bit, not much. But I appreciate 100% vis when I see it.
According to this CNN piece on unusual scuba diving locations, the water at the Silfra fissure in Iceland’s Thingvellier National Park is so clear, that people sometimes suffer from vertigo while diving.
You can also drink the water while diving as it is perfectly fresh.
If you want to display my photo on your site would you please credit to myself – its the second one up from the bottom called silfra_lagoon_charles_hood2
Of course – which photo is it? On which post is it? Very happy to credit in full.
Caspar