Imagine a Miami beach club, but with views of an alpine lake and the Prealps. Soft, bright white furnishings create an ambience of heavenly purity, if you believe in a luxurious heaven, that is. You can cool off under the freestanding rainforest shower or in the whirlpool, but many simply choose to lounge around on sofas or to feel the sand beneath their feet. The round bar serves up cocktails and snacks and there's no admission fee. This rooftop-bar is only open if the weather is good.