More and more people are going on holiday in the woods. So say the Harvard-grad founders of Getaway, anyway, a fast-growing start-up that offers “tiny house” rentals in woodland areas just outside cities like Boston, New York and, its newest opening, Washington. The cabins are totally off-grid – meaning no TV, no wi-fi – and are particularly popular with young people looking for a kind of digital detox. Indeed, the chance to enjoy the cranially curative benefits of being in nature is a genuine phenomenon, according to The Nature Fix author Florence Williams: “Woodlands are now proven to reduce blood pressure and stress levels. So much so, Japan has 48 designated ‘forest therapy’ trails where overworked urbanites are urged to unwind.” Nature also apparently makes us smarter. “Research by neuroscientist David Strayer showed people perform 50 per cent better on creative problem-solving tasks after three days in the wilderness,” says Williams. Time to head for the hills.