Recalling the silhouette of a manta ray, the central building of Saffire Freycinet is tucked away at the heart of a protected nature park in Tasmania. Built in 2010 in environmentally friendly mode by Morris Nunn and Associates, this luxury lodge offering 20 suites in villas with superb views of the sea and the Hazards mountains is one of the world’s most expensive hotels. www.saffire-freycinet.com.au