While snorkeling at Spotts Beach, on the south coast of Grand Cayman island, we came across a green turtle in the shallows. This was our first real turtle sighting, and we were obsessed. We followed that thing around for close to 20 minutes, trying not to get too close and scare it away. It seemed pretty calm for the most part, just lounging around and eating some seaweed as we watched. Click here to see a short video of it on YouTube.