Coles Bay, Tasmania (saffire-freycinet.com.au)
Why it rules: Home of the Tasmanian devil and the cleanest air on the planet, the Freycinet Peninsula, with its sweeping views of the Hazards (a pink-granite mountain range), makes for the ultimate spa setting.
Local flavor: Try the Sapphire Ritual ($420), which is performed on a Daintree-wood treatment table sourced from the Australian rain forest. We're not exactly sure how a blue topaz balanced on your forehead serves to "stabilize your energy field," but we're interested, and the locally mined, sapphire-dust-infused facial, which aims to restore luminosity and tighten pores, sounds promising and so luxe.
DIY: Saffire Feycinet Mineral Bath Pure and Natural, $30; Saffire Feycinet Body Crème with Pure Blue Sapphire Dust, $45.