As we swam into the deep blue surrounding the strange outcrop called La Roca Partida, I was filled with a strange combination of thrill and calm. You know, the calm you feel as the water gently rushes past, and the sound of your breath as the bubbles escape up towards the surface. The faint crackling of reef life faded as we continued our adventure – that’s where the thrill came in. I’ve never gone into the blue before, where your sole orientation is the opaque surface above. I always imagined that my heart would seize with fear, but no, the brilliant blue of the ocean with maybe a distant shifting shape of a fish or some other alien creature peaked my curiosity, and I kicked harder in anticipation of what we might encounter. And then, out of nowhere appears a hammerhead, gorgeous in its predatorial movement, so powerful! It swam towards us, paying no heed, as if we were below its attention. With one swift and solid flick of its grey tail it faded back into the thick blue water. Soon after we returned to the outcrop that descended roughly 10,000 feet, the final remains of an ancient volcano. Schools…