Cold comfort
Wild swimming might be very on-trend, but it takes true mettle to submerge oneself in icy pools in the middle of winter. However, it can be done in style and (relative) comfort at the Valsana Hotel in Arosa, Switzerland, which is offering ice swimming in nearby Lake Untersee. Prepare with yoga beforehand to regulate breathing, then after your plunge, relax and restore by a roaring fire.
€100, valsana.ch