Da Nang is a large and sprawling city, and our time here is very short – plus, we’ve discovered that the sights which we want to visit are a distance apart from each other and are all some way away from our seafront hotel. Sipping draught Tiger beer on our first night here, we are just debating whether hiring a driver for a day might be our best solution, when we look up and see a guy with a plastic wallet full of leaflets making a beeline for us across the road. “Hello”, he says, “my name is Mister Tony. You want find a driver and guide for your stay…