I’m starting to feel like I live in the middle of a National Geographic special. Today began of with a snorkeling excursion to a bay where we were told we’d be able to swim with the marine iguanas that inhabit Isabela island. By the time the snorkel was over, not only had we hung out with the swimming iguanas, but also swum with turtles, a penguin, a sea lion and one of the largest sting rays I’ve ever seen. Never mind the dozens of star fish all over the sea floor.  Ah, but we’re not done says our guide as we get back into the boat. We are now going…