Back in Europe, Schloss Elmau, an idyllic nature escape in the German Alps, offers expert-led and unguided wild swimming excursions in several peak-flanked lakes. Guests can take e-bikes to Ferchensee ...

The “wild swimming” trend — aka open-water swimming, or taking dips in lakes, rivers, streams or even the sea — isn't exactly new. Still, it has been increasing in popularity over the past decade, ...