Reykjadalur hot springs: a walk before the bath
Reykjadalur hot springs lie in a geothermal valley above Hveragerði, in the Hengill area. The warm Reykjadalsá river is the bathing destination, reached by a walk through the valley. The popular trail to the bathing section is approximately 3.5 km each way, making about 7 km out and back along the same route. Treat the river as part of a hiking day rather than a roadside bath.
The local tourism guidance gives experienced hikers about an hour for the uphill walk. Bathing, the descent and weather delays need additional time. Choose a plan that matches the experience and fitness of the whole party. For a base with accommodation and restaurants near this geothermal area, compare Hveragerði in the places to stay guide.
Hveragerði and its geothermal park
Hveragerði is the town to use when planning access to Reykjadalur. Its geothermal setting is also part of the town visit, with restaurants and accommodation available. A stay here can make sense when the walk is a main activity, but choose the exact address with the journey to the trail area in mind. The town name alone does not place a room beside the bathing section.
The geothermal park in Hveragerði is fenced for safety and can be visited during its published opening times. Keep the park visit and the valley walk distinct. One is a town attraction; the other requires time, clothing and an assessment of the outdoor conditions. If weather changes the hiking plan, do not treat nearby hot ground or a steaming source as an alternative bathing place.
Hike in Reykjadalur
A local guide and small group make this a supported way to explore the valley and its warm river.
Hand-picked tours, booked through GetYourGuide. Prices are indicative starting prices in euros (as of October 2026). Tap a tour for live availability and the current price in your currency.
Guided Reykjadalur valley walk
A four-hour small-group hike with a local guide, warm river swim and photos; make your own way to Árhólmar 13.
Access and parking at Árhólmar
The municipal parking tariff for a car with 1 to 9 seats is 1000 ISK for the first five hours in the information used for this November 2026 guide. Charging begins after 30 minutes; within the first hour, 30 percent of the tariff applies. Beyond five hours, the tariff provides for another charge covering a further block of the same length.
These are parking charges, so keep them separate from decisions about the natural river and from the price of a guided hike. Allow enough parking time for walking, changing, bathing and returning without rushing. The meeting point for the guided experience presented here is Árhólmar 13, 810. Arrange transport to that meeting point yourself; it is separate from the guided activity.
The bathing river and dangerous hot springs
The warm river and the hot springs are different parts of the geothermal landscape. The local safety guidance warns of springs at 80 to 100 °C and requires at least 2 metres of distance from those sources. That temperature range describes the dangerous springs, rather than the temperature of the bathing river. Keep to the paths and follow the signs around geothermal ground.
Bathing should remain a decision made with the conditions and local instructions in mind. A photograph of people in the river does not tell you what the water or access will be like on another day. For a different type of bathing plan, compare crater excursions with thermal baths. Kerið itself is a crater lake, rather than a warm pool to substitute for this walk.
What the guided small-group hike includes
The four-hour Reykjadalur experience here includes a local guide, a guided valley hike, swimming in the naturally warm river and photographs taken during the activity. It is a small-group experience. It suits travellers who want guidance on the walk while arranging their own arrival in the Hveragerði area. Its destination is Reykjadalur, separately from a crater visit.
There is a lunch break, so bring the meal you want for that stop. Bring swimwear, a towel, hiking shoes and clothing suitable for the weather too. Transport to the meeting point is excluded. If Kerið is also part of the trip, plan its road approach and admission as separate arrangements rather than combining them with this hike by assumption.
Weather, equipment and temporary closures
Weather changes and cooling down can be a concern even in summer. Carry a phone, hat and gloves, with windproof and waterproof clothing appropriate to the day. Take the walking distance seriously even when the bathing stop is the attraction. Time in warm water does not remove the need for suitable clothing during the return journey.
Check SafeTravel and the weather before setting off, stay on the marked paths and respect temporary trail closures. Adjust the plan to the least experienced walker and leave room to turn back. The hour uphill is guidance for experienced hikers, not a winter or family schedule. The seasonal planning page helps place the walk alongside a separate crater day without assuming favourable conditions for both.
Frequently asked questions
How far is the walk to the warm river?
Approximately 3.5 km each way, or 7 km out and back. Experienced hikers are given about an hour uphill, with bathing and return time additional.
Are all the hot springs suitable for bathing?
Use the bathing river as directed locally and keep away from the dangerous springs. Local guidance warns of 80 to 100 °C at springs and requires at least 2 metres of distance.
Does the guided hike include transport or lunch?
Arrange your own transport to Árhólmar 13 and bring food for the lunch break. The experience includes the local guide, hike, river swim and photographs.