I was already lost in my head when something grabbed my leg. Having forgotten for the moment all about Reg, I almost lost it. Then he pulled up closer to me and I realized I’d probably been swimming faster than he could. I stopped, but he pointed across in front of me and I looked where he indicated. There was a big green sea turtle just rising up out of the rocks, right in front of me, and I hadn’t even noticed. We hung there and just watched it as it rose to the surface to breathe, and then we followed it for a while, until it turned back and almost knocked into me. I’d never seen one so close before, and then it dove abruptly, or sank like a rock, and zoomed past beneath me. I would have laughed out loud but you just don’t do that with a snorkel in your mouth. Even just smiling can make your face mask leak. Reg and I could see the excitement in each other’s eyes though, and I forgave him for scaring the crap out of me.