1 Hotel Brooklyn Bridge

1 Hotel made its name on reclaimed wood, living walls, and a kind of earnest, leafy sustainability — and honestly, it works. The Bamford Wellness Spa carries the same DNA: a dry sauna in a calm, plant-filled, timber-lined space that feels a world away from the city, even though the Brooklyn Bridge is basically in the window. The real showstopper is the rooftop pool with its full sweep of the Manhattan skyline and harbour. Rooms are natural-toned and soothing, all linen and reclaimed materials. It's a touch more relaxed and a touch more affordable than the Manhattan five-stars, which makes it a genuinely good-value way to get a proper sauna with a once-in-a-lifetime view next door. Sauna access is included; the rooftop pool is seasonal and very popular, so go early.