Hindsight is a wonderful thing. Yet at the time it seemed entirely logical that if we were heading out on to the Indian Ocean to see the renowned magnificent Nungwi sunset, then it would be time for dinner by the time we came back to shore. So it made perfect sense to change out of beachwear and into something more appropriate before we made our way to the boat – got to be the correct decision, right? Wrong. “We’re here for the sunset cruise”, I called to the pre-occupied boat guys, trying to elicit some kind of response. A couple of them looked up so we gravitated towards them. “Where…