Reykjadalur Valley offers a unique experience combining hiking and geothermal bathing. The hike itself is approximately 2 miles one way, leading you through a dramatic landscape filled with steam rising from geothermal vents, bubbling hot springs, and lush green hills. Along the way, you’ll pass scenic views of Icelandic mountains and valleys, with the path gradually becoming more defined as you approach the hot spring river. At the end of the hike, you’ll find a boardwalk that runs alongside the warm river. Here, you can enjoy bathing in sections of the river that vary in temperature depending on proximity to geothermal sources. The water typically ranges between 36°C and 40°C (96°F–104°F), with warmer spots upstream. The area is equipped with makeshift privacy screens for changing. The Reykjadalur hot spring river is a popular destination, especially during the summer months when the weather is more favorable for hiking and bathing. However, the trail is open year-round, with extra precautions needed in winter due to icy conditions. The valley is also known for its vibrant geothermal moss and colorful hot springs, adding to the surreal beauty of the place. TIP: The trail is covered in snow and ice during winter months, so good hiking boots with mini-crampons are a must. Also consider that you will be changing on snow, so flip flops or a matt is a great idea, in retrospect. TIP: There is a decent restaurant right at the parking lot where you can grab some delicious local food (we had a chili soup last winter) and relax with the incredible views.