While we were researching our trip to Iceland with kids and both sets of their grandparents, we realized pretty quickly that everyone’s “must do” stop in the Blue Lagoon wasn’t for us – often crowded, always expensive, and focused on luxury and relaxation – two things that little kids have no ability to appreciate. But we had something better in mind: a family-friendly hike that ends in a natural hot river—no reservations, no tour buses, no pricey admission.
If you’re dreaming about hiking with kids in Iceland but wondering if it’s realistic (or enjoyable), our Reykjadalur Hot Springs hike might be the perfect place to start.
Why We Chose Reykjadalur Hot Spring Thermal River
This trail checked so many boxes for our family:
- An actual adventure with a reward at the end
- Close to Selfoss, where we stayed (also close to Reykjavik) with the remote and wild feel that most of Iceland has
- Free, uncrowded, and naturally stunning
The 9 km (5.5 miles) out-and-back hike starts from Reykjadalur Café in Hveragerði, about 45 minutes from Reykjavik or under 30 minutes from Selfoss. The café is worth mentioning because it’s adorable—and sells warm gear if you forgot something. From there, you follow a well-marked trail through green hills and steaming vents until you reach a steaming river you can soak in.
If that sounds too good to be true, I promise—it’s very real and very worth it.
Can Kids Really Do This Hike?
Yes, but let’s be honest—it’s not a walk in the park.
This was the longest hike our daughter Remi (5 years old at the time) had ever done. She hiked most of it herself with a few breaks riding on Dani’s shoulders as a reward and distraction. We came prepared with plenty of snacks, a carrier for Arlo, and lots of little tricks like “race you to the next corner” and storytelling games to keep her going.
There are a few steeper parts and it can get muddy depending on the weather, but there’s no scrambling or dangerous cliffs. If your kids are used to walking a mile or two, they can probably handle this with a good attitude and some pacing.
We got lucky with the weather, but as with anywhere in Iceland, be prepared!
What the Trail Is Like
- Length: ~9 km (5.5 miles) roundtrip
- Time: 2.5 to 5 hours total with kids and grandparents, depending on how long you soak at the top
- Trailhead: Reykjadalur Café in Hveragerði
- Terrain: Gravel, dirt, some incline, possible mud
- Facilities: Minimal—basic changing walls at the river, café at the start
The landscape is pure Iceland—rolling green hills, bubbling mud pots, and occasional plumes of steam rising from the earth. It feels like you’re walking through a dream world, and it kept Remi curious and engaged. (There was still whining, because nothing is magical enough for a 5 year old 😅)
The Reward: Soaking in a Natural Hot Spring River
After about 4.5 km, you’ll see the river—and you’ll know exactly why you came.
The Reykjadalur thermal river is like a long, winding creek. The water is shallow in some areas and hot-tub-deep in others, depending on where you stop. It gets warmer the farther upstream you go, so don’t settle for the first chilly pool you find.
We tried out a few spots before landing on the perfect one: warm enough to soak without getting scorched, shallow enough for the kids to enjoy safely, and just far enough from the main path to feel peaceful.
A few things to know:
- The “changing areas” are open-air wooden stalls with 2 or 3 walls. Not private, but functional. (Some of us opted to wear swimming suits on the walk)
- The rocks can be slippery—water shoes or sandals help.
- Bring a towel and a dry bag for your wet gear on the hike back.
What We Loved (and What Was Hard)
🧡 What We Loved:
- Seeing Remi power through her longest hike yet
- The feeling of discovery and independence
- Being in a totally natural hot spring without the crowds
- The contrast of cool air + warm water + epic views
🥾 What Was Hard:
- No stroller access—babies need a carrier
- The hike back feels long with tired legs
- Mud! It’s Iceland. Just expect it.
Still, we’d do it again in a heartbeat. It was a highlight of our trip and one of those moments where everyone felt proud, tired, and happy all at once.
Would We Recommend Hiking Reykjadalur with Kids?
If your idea of a great family trip includes a little challenge, a big reward, and nature doing its thing—yes. 100 times yes.
This isn’t a paved nature walk. It’s a real adventure. But it’s absolutely doable with kids, and it gives them something meaningful to accomplish. You’ll walk away with muddy boots, tired legs, and memories your kids will talk about for years.
Quick Packing List for Hiking with Kids in Iceland
- ✅ Waterproof hiking boots or sturdy sneakers
- ✅ Layers + rain jacket
- ✅ Swimsuits + small towel
- ✅ Water shoes or sandals for the hot springs
- ✅ Snacks + lots of water
- ✅ Carrier or wrap for little ones
- ✅ Dry bag or plastic bag for wet clothes
- ✅ Change of socks for after
Final Thoughts: Let the Trail Surprise You
One of the best parts of hiking with kids is seeing them rise to the occasion. Sure, they’ll complain. You might too. But then you’ll look back at that moment—sitting in a steaming river after a big hike—and realize that’s the part they’ll remember forever.
If you’re visiting Iceland with kids and want to skip the crowded tours and do something that feels real—Reykjadalur is your trail.
