One of the biggest gay saunas in Europe, Thermos is a legendary gay Amsterdam institution. Tourists, chubbies, students and the occasional geriatric all mix in the labyrinth upstairs and the wet compartments on ground floor that include a swimming pool, dry sauna, wet sauna and whirlpool. The décor is still very much stuck in the 1970s and about as cosy as the interior of a nuclear power plant, but most men seem to focus on other things, which explains the cruisy atmosphere, especially at the weekend. An attached hair salon and beauty parlour is also available for those in need and free condoms can be found at the bar.