2015.08.09.

I woke up with one thought: today's the day that could derail everything!

At 7:00am, we met up with Ségo, our French-Swiss-Scandinavian guide, and her easy bantering colleagues for our Silfra dive. A glacial meltwater-filled fissure, Silfra forms one finger of the Thingvallavatn lake in Thingvellir National Park. Its relatively still, dark surface belies a magnificent spectacle underneath of rock cliffs dappled in blue light. Or so promised Google. On the hour-long ride over, I mulled over how much I'd enjoy a prolonged submersion in 2-3°C water. In our last cold water dive in Boston, not only was there nothing but green murk to see, I came damn close to a panic attack when I found myself improperly geared and fingers unresponsive at a balmy 7°C. Nonetheless, we'd wanted to do this for months now and made Matt take a week off of work to come along, so there was no backing out.