Running straight underneath Iceland, the Silfra fissure is known among water sports enthusiasts and geologists alike, as this rift is formed by the North American and the Eurasian tectonic plates drifting apart. While Fauna and Flora are rather sparce, the mesmerizing shapes and colours of the rock formations are more than enough to satisfy any diver taking on the cold waters. Dark valleys open up between light cliffs, some too narrow to place a finger in, some wide enough to realize you are swimming between continents.