Green valley suburb 15km north of Reykjavik — Halldor Laxness's house, Reykjadalur hot river, and the road north.
Mosfellsbaer sits at the mouth of Mosfellsdalur valley, a green cleft in the hills where steam rises out of the ground and the Ring Road starts heading north. Halldor Laxness — Iceland's Nobel laureate — lived and wrote here; his house at Gljufrasteinn is now a museum and it's genuinely worth 40 minutes. Beyond that, Mosfellsbaer is a low-slung suburb of 12,000 people with a decent bakery (Molabakari), a mall, and easy access to Iceland's most famous river-bathing spot at Reykjadalur. The valley itself runs east past horse farms and greenhouses toward the hills, and on a clear evening the light on Esja is better than anything you'll see from a downtown window.
Stay here if you're planning to hike Esja, drive the ring road north, or bathe in the Reykjadalur hot river — the trailhead is only 30 minutes' drive. Doubles ISK 15353-ISK 20879. Skip if you want restaurants, bars, or anything that stays open past 9pm. What you get is silence, geothermal steam vents in the fields behind your hotel, and a shortcut to the countryside. Dinner options are limited to a pizza place by the local supermarket and whatever you cook yourself, so most visitors eat in Reykjavik on the way out and drive back to sleep.
The town itself has two centres: the older cluster around the church and the swimming pool at Lagafellslaug, and the newer strip malls along Vesturlandsvegur where you'll find the petrol station, a bank, and a hardware store. Neither feels like a destination, and that's fine — nobody comes to Mosfellsbaer to wander a high street. What draws people is the valley behind the houses: horses in paddocks, a golf course, and the sense that the mountains start about two minutes past the last driveway.
Families doing a week-long Ring Road loop often base here for the first and last night, using Mosfellsbaer as a decompression stop before or after Keflavik. Solo travellers chasing Reykjavik nightlife should stay downtown instead — the last bus back from the city centre is close to midnight and a taxi runs well over ISK 6000. If your priority is the Blue Lagoon, the south coast, or the Golden Circle, though, the 20-minute head start matters more than a bar down the street.
Where to sleep
The two Icelandair hotels near Vardaras and the guesthouses along Thingvallavegur are the practical picks — you can walk to the bakery and the swimming pool. Expect ISK 15353-ISK 20879 in high season, dropping toward ISK 12000 in November and January if you avoid the two weeks around Christmas. Hotel Laxnes, out near the farm the Laxness family once ran, and Hotel Vellir in the newer part of town both put you within a 10-minute drive of Gljufrasteinn and the Esja trailhead. Avoid anything advertised as 'Mosfellsbaer' that turns out to be a farmstay 15km up the valley; those are lovely but you need a car and the reviews often bury the location detail. If you're driving, the location is more forgiving, and Hotel Laxnes is the better bet if you want to walk to a river rather than just a car park.
Where to sleep
Hotels in Mosfellsbaer
Rated by real guests, not pulled off a spreadsheet. Rates run the same or better than booking direct, and every booking funds one tonne of carbon removal.
On the ground
Things to do in Mosfellsbaer
- Visit Gljufrasteinn (Laxness house)Halldor Laxness's home from 1945 until his death, preserved as-is down to his glasses on the desk and his Jaguar in the carport. Thingvallavegur, 5km up the valley. ISK 1842 entry, open 9am-5pm June-August, weekends only in winter. Includes an audio guide and a short film; allow 40-60 minutes including the walk around the garden.
- Bathe in Reykjadalur hot riverTrailhead at Hveragerdi (30 minutes' drive east). 3km uphill hike past bubbling mud pools to a warm river you can sit in for as long as you like. Free, no facilities beyond a wooden changing screen at the top. Bring towels, water shoes, and start by early afternoon in summer to beat the tour buses.
- Swim at LagafellslaugLagafellsvegur 8. Big modern pool with two waterslides, a lap pool, and hot pots set slightly apart from the crowd. ISK 983 entry, towel and swimsuit rental available at the desk. Popular with families after school. Open 6:30am-9:30pm weekdays, shorter hours at weekends. Better hot pots than most Reykjavik pools and a fraction of the queue.
- Hike Esja from MogilsaThe classic Reykjavik-region hike, trailhead 10 minutes' drive from Mosfellsbaer on Route 1 at Mogilsa. To the 'Steinn' rock is 2 hours return, moderate, with a scramble near the top. Free parking, no entry fee, one of the busiest trails in the country on weekend mornings — go on a weekday if you want it quiet.
- Wander Alafosskvos artist quarterOld wool mill village on Alafossvegur, now home to ceramics and textile studios in the original stone buildings. Free to wander, most studios open Thursday to Sunday afternoons. The riverside path here is also the start of the Mosfellsdalur valley walk, and there's a small waterfall right behind the main building.
- Breakfast at Molabakari bakeryVesturlandsvegur, opposite the main petrol station. Fresh bread, cinnamon rolls, and coffee from about ISK 690 a pastry. Opens 7am on weekdays, 8am at weekends, and it's the only place in town with a queue before 9am. Good stop before the Esja hike or the drive north.
The essentials
Mosfellsdalur valley walk (6 km)
Start at Alafosskvos (the old wool mill turned artist studios) on Alafossvegur. Walk up the valley alongside the river past Gljufrasteinn, then loop back via the geothermal field where you'll see steam vents right by the path. Views across to Esja and, if you carry on, into the empty green interior. Allow around 90 minutes at an easy pace, longer if you stop at Gljufrasteinn or linger by the steam vents; the path is flat gravel and stroller-friendly for most of its length.
Getting there & around
Bus 15 from Haleitisbraut in Reykjavik reaches Mosfellsbaer in 30 minutes, ISK 614. It runs every 30 minutes weekdays, hourly at weekends. From Keflavik airport there's no direct route — take the Flybus to BSI then bus 15, about 1h30 total. With a car, Mosfellsbaer is 20 minutes from downtown Reykjavik on Route 1 and gives you a head start on Thingvellir and the Ring Road. Once you're here, everything worth reaching — the pool, the bakery, Gljufrasteinn — is within a 15-minute walk or a 5-minute drive of the main hotels, but Reykjadalur and Esja both need a car or an organised tour, since neither has a bus connection.
Good to know
Mosfellsbaer, questions answered
Is Mosfellsbaer a good base for the Golden Circle?
Yes — you cut 20 minutes off the Reykjavik round trip and the drive to Thingvellir starts right at your door. Combine with the Reykjadalur hot river the next day.
How do I get to the Reykjadalur hot river?
Drive 30 minutes east to Hveragerdi, park at the trailhead, then hike 3km uphill. It's a moderate hike, allow 90 minutes each way plus bathing time. Not accessible by bus.
Can you visit Mosfellsbaer without a car?
Yes for the town itself — bus 15 gets you to the bakery, the pool, and within walking distance of Gljufrasteinn. No for Reykjadalur or the Esja trailhead, both of which require a car or a tour, since there is no bus service to either. Most visitors without a car base in Reykjavik instead and treat Mosfellsbaer as a half-day trip.
What is Mosfellsbaer known for?
It's best known as the home of Nobel laureate Halldor Laxness, whose house Gljufrasteinn is now a museum, and as the gateway to Mosfellsdalur valley and the geothermal fields behind it. It also sits on the way to the Reykjadalur hot river and the start of the Ring Road heading north. Locally it's known for Lagafellslaug pool and for being a quiet, family-oriented commuter town rather than a tourist destination in its own right.
Keep exploring
Nearby areas
539 stays
Reykjavik
Iceland's small, walkable capital — geothermal pools, harbour whales, and the country's only real nightlife on Laugavegur.
Stays in Reykjavik ↗16 stays
Thingvellir
UNESCO rift valley where Iceland's parliament met from 930 AD — walk between tectonic plates and snorkel in Silfra fissure.
Stays in Thingvellir ↗48 stays
Hveragerdi
Geothermal greenhouse town 45 minutes from Reykjavik — Reykjadalur hot river trailhead, tomatoes grown year-round.
Stays in Hveragerdi ↗Doing good is the business: every booking through Stay Iceland funds one verified tonne of carbon removal — same room, same price, no markup.
Search stays


