What should I wear for river rafting on the Lütschine?

Wear swimwear as your base layer under the wetsuit provided by OUTDOOR. Fitted board shorts, a bikini, or a one-piece all work well. Avoid cotton, which provides no insulation when wet, and avoid swimwear with hard metal buckles or seams that press into your skin during the 2-hour tour. Some people prefer a thin rash guard or sports top under the wetsuit for extra comfort. Everything else, including the wetsuit, life jacket, helmet, and water shoes, is provided at the OUTDOOR Base in Wilderswil before departure.