Overview
A real hot river, earned by a hike
Reykjadalur (often called “Steam Valley”) is a geothermal hiking area near Hveragerði where a warm river becomes soakable in certain stretches. You don’t arrive at a pool with a front desk. You hike past steaming vents and bubbling ground, then choose a spot in the river that feels comfortable. The water temperature varies by location, so finding your “just right” section is part of the experience.
What makes it different from lagoons
This is the opposite of a spa day. Facilities are minimal and the environment is active geothermal terrain. The reward is that it feels wild and honest. You can hear the valley, not the soundtrack of a facility, and you leave with boots muddy and hair wind-dried.
When it feels best
Clear weather makes the hike more pleasant, but Reykjadalur can still be worthwhile in cooler months if you’re prepared. The key is treating it like a hike first, soak second.
Location & Access
Where it is
Reykjadalur Valley is near Hveragerði in South Iceland. The most common approach is to park at the Reykjadalur trailhead car park just outside town, then hike up-valley to the bathing section of the river.
Getting there
Drive to Hveragerði on Route 1, then follow signs toward the Reykjadalur trailhead. The final approach is typically straightforward for normal cars, but winter conditions can change traction quickly. If the forecast is rough, the best decision can be to skip the hike and choose a built pool day instead.
The hike
Plan for a moderate uphill walk each way. The trail is popular and generally well trodden, but it still includes exposed stretches where wind and rain feel bigger than expected. Give yourself daylight, especially outside summer.
Facilities
Expect basic amenities. Toilets are typically at or near the trailhead, while changing at the river is usually limited to simple privacy screens. Pack like you’ll change quickly and keep your gear tidy.
What to bring
Swimsuit, towel, warm layers, and a dry bag for clothes. Wear real hiking footwear, and bring traction in icy seasons. A small snack and water help, and a headlamp is smart if there’s any chance you’ll be walking back in low light.
Suitability & Accessibility
Reykjadalur is best for travelers who want a natural geothermal soak and are happy to hike for it. It suits people who like self-guided days, steady walking, and a bit of weather exposure.
Families
It can be family friendly for families with hiking-ready kids, but it’s not a casual “bring toddlers and see what happens” spot. If you bring children, plan conservative soak time, keep them well back from steam vents and hot ground, and be ready to turn around if conditions feel sketchy.
Mobility realities
This is not an accessible destination in the usual sense. The trail is uphill, uneven, and exposed, and the bathing area requires stepping into a natural river channel. If you need step-free access, choose a developed geothermal bath instead.
Expectations vs reality
People imagine a single perfect pool. In reality, you’ll walk along the river and pick a spot, adjusting a few times until the temperature feels right. It’s normal. The best attitude is flexible and patient.
Best timing
Early starts usually mean easier parking and more choice along the river. If you want quieter soaking, avoid the middle of the day in peak summer and weekends.
Safety & Etiquette
Stay on the marked trail
Reykjadalur is an active geothermal area with hot vents, fragile ground, and boiling water in places you do not want to step. Staying on the trail is the simplest way to keep the day smooth, especially with kids.
Test the river temperature before you commit
Temperature changes along the river. Ease in slowly, feel with your hand and forearm first, and move if it’s too hot. It’s normal to shuffle a little upstream or downstream to find a comfortable section.
Weather can flip the comfort fast
Wind and rain turn a warm soak into a cold walk in minutes. Keep dry clothes in a sealed bag, bring a warm hat, and avoid lingering wet while you decide what to do next.
Slips and falls
Rocks and riverbed surfaces can be slick. Step carefully, keep a stable stance, and avoid carrying too much in your hands. Sandals with grip help at the river, but don’t rely on them for the hike.
Respect the simple changing setup
Use the screens, change quickly, and give others space. It goes best when everyone treats the place like a shared backcountry changing room, not a private cabana.
No soap in the river
It’s a natural watercourse. Rinse later in a proper shower instead of using shampoo or soap in the river.
Leave it easy for the next person
Pack out all trash, including small items like hair ties and snack wrappers. Keep the riverbank clear so others can move and soak without stepping on gear.
FAQs
How long is the Reykjadalur hike?
Most visitors describe it as a moderate uphill hike each way from the trailhead car park, with the river reachable on foot only. Give yourself enough daylight and don’t rush the return.
Is Reykjadalur free to visit?
The valley itself is generally free to access, but parking at the trailhead may be paid. Check the on-site signage or current local information when you arrive.
Are there changing rooms?
Not in the usual sense. Expect only basic privacy screens near the river and toilets at or near the trailhead. Bring a towel and a dry bag so you can change quickly and stay warm.
How hot is the river?
It varies by location. The common approach is to walk along the river, test the water with your hand, and choose a spot that feels comfortable.
Is it safe?
It can be, if you treat it like a hike in geothermal terrain. Stay on marked trails, keep distance from vents and hot ground, and avoid the hike in severe weather or low visibility.
Is it wheelchair accessible?
No. The route is a natural uphill hiking trail and the bathing area is a river channel, not a built pool.