With pools closed swimming outdoors in natural settings became popular during the pandemic . BBC looks at this trend which was also called wild swimming or swimming in wilderness environments. Across Britain in lakes and along the coast it became popular to take a swim sometimes in temperatures that were quite cold. Wildnerness swimming could be at normal temperatures and as a definite value for mental health, just as is shown for barefoot walking on grass as shown on this page by German wellness guru Kniepp.