First of all, sauna is supposed to be hot! Typically between 75–100°C (165–210°F). And yes, we Finns love to make it even hotter by throwing water on the rocks (we call it löyly). In Finland, sauna is often enjoyed naked. If it’s a mixed sauna, you might wear a swimsuit or wrap a towel around you but most of the time, people go in as they are. And to boost circulation, some use a vihta (or vasta), a bundle of fresh birch twigs used to gently whip the skin and release a refreshing scent of the fo