Saunaclub YinYang stands on the Heinsbergerweg in wooded Roermond, on a discreet site close to both the German and Belgian borders. It calls itself one of the largest and most unusual clubs in Europe.

Several female guests are present daily, in lingerie or swimwear; a guest who meets one can withdraw to a private room, and the club is explicit that the women set their own prices and their own rules for their services, agreed clearly in advance.

The wellness side runs to an outdoor pool — heated and open all year — saunas, a whirlpool, and sports or relaxation massages from the club's own masseurs. The restaurant serves a changing buffet of freshly made dishes daily, and there is a bar, plus a Men's Lounge for quiet, sport on screen and a drink.

The club makes a point of its position: five minutes from the A2 towards Eindhoven and Maastricht and the A73 towards Monchengladbach and Dusseldorf, with Brussels and Eindhoven airports both easily reached.