While urban camping might sound like an oxymoron, there are some surprising options for roughing it in the city.

Take for example Bivouac, a pop-up campsite on rotating, secret rooftops where you can wake up surrounded by Brooklyn’s terraces or admiring Central Park from above–free of charge.

Created by artist Thomas Stevenson, the site consists of six waterproof canvas tents with wooden frames and one-inch wool felt flooring for comfort and insulation.

There’s no electricity or internet to help guests disconnect from daily life, so all you have to do is book your stay in advance through Thomas (the “park ranger”) and bring along a sleeping bag and food to share in a communal dinner.

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