Phú Quốc

Lapped by azure waters and edged with the kind of white-sand beaches that make sun-seekers sink to their weak knees, Phú Quốc – way down in the south of Vietnam – is ideal for slipping into low gear, reaching for a seaside cocktail and toasting a copper sun as it dips into the sea. And if you want to notch it up a tad, grab a bike and hit the red-dirt roads: the island is relatively compact, and offers areas of natural, unblemished jungle alongside some newer, less-serene additions (a Vietnamese version of Disneyland and the world's longest over-sea cable car as two examples).