Reykjadalur Hot Springs is a hidden gem in Iceland where you can hike into a steam-filled valley and soak in a natural hot river. The hike is about 45 minutes long, with stunning views of waterfalls and lush greenery along the way. Be prepared to share the valley with friendly sheep and Icelandic horses, and don't forget to read the signs to avoid the boiling water! The best time to visit is in the summer or early fall for optimal weather conditions. And remember, there's not much privacy for changing clothes, so be ready for a quick change after your relaxing soak in the warm waters of Reykjadalur Hot Springs.