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ION Adventure Hotel: design hotel on the lava by Þingvallavatn

HotelGolden CircleCouplesNorthern lights
Photos: Þingvellir National Park, by the hotel.
ION ADVENTURE HOTEL IN SHORT

A modern design hotel standing on a lava field at Nesjavellir, beside Lake Þingvallavatn and about an hour from Reykjavík. It suits couples and small groups who want the Golden Circle on the doorstep, a good restaurant and a dark sky for northern lights.

Nesjavellir by Lake Þingvallavatn, Golden Circle
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Quick factsRoomsFood and drinkFacilitiesThings to do nearbyGetting thereWhen to stayTipsMapFAQ

About ION Adventure Hotel

ION Adventure Hotel sits on the slopes of Mount Hengill at Nesjavellir, on the south-west side of Lake Þingvallavatn. The building was once staff housing for the nearby Nesjavellir geothermal power plant. It was rebuilt by the architects Minarc and opened as a hotel in 2013. The result is a long concrete and glass block raised on pillars above the moss, with steam from the geothermal area rising behind it.

The location is the main reason to stay. Þingvellir National Park is around half an hour away by car, and Geysir and Gullfoss are an easy day out from the hotel. At the same time you are well away from town lights, so on a clear winter night you can watch for the aurora from the Northern Lights Bar or from your room.

Inside you find Silfra Restaurant, the Northern Lights Bar with its wide wall of windows, and the Lava Spa with a small geothermally heated outdoor pool, a sauna and a relaxation room. Rooms are compact and simply furnished, with natural materials and large windows that face either the lava field, the mountains or the lake.

We send guests here when they want one or two comfortable nights on the Golden Circle rather than driving back to Reykjavík each evening. It is a quiet place. There is no village nearby, so plan to eat at the hotel.

As a local travel agency in Iceland, we can book ION Adventure Hotel for you on its own or as part of a self-drive trip or private tour. Use the Ask us to book it button and tell us your dates.

Quick facts

LocationNesjavellir by Lake Þingvallavatn, 801 Selfoss
Rooms66 rooms and suites in nine categories, from single rooms to suites with a private sauna
RestaurantSilfra Restaurant and the Northern Lights Bar
SpaLava Spa with outdoor geothermal pool, sauna and relaxation room
Drive from Reykjavíkabout 1 hour (roughly 50 km)
OpenAll year
Check-in / check-outFrom 16:00 / by 12:00
ParkingFree parking at the hotel

Rooms at ION Adventure Hotel

The hotel lists nine room types. All have a private bathroom with shower, free Wi-Fi and a small sitting area. Rooms are on the small side by international standards, which is normal for this building, so choose a Deluxe room or a suite if space matters to you.

Single Sub-Parterre RoomTwo small single rooms of about 15 m² on the lower level, with a queen bed. A good choice for a solo traveller who mainly wants the location.
Classic and Standard Double/TwinAbout 20 m², with a king bed or two single beds. Classic rooms look over the lava field; Standard rooms have a lake or mountain view. An extra bed for a child up to 12 can be added.
Patio RoomThirteen rooms of 23 to 28 m² with a king bed, a complimentary minibar and a small patio facing the lava fields of Mount Hengill.
Deluxe Double RoomThe largest group of rooms, with floor-to-ceiling windows. Some face the Nesjavellir geothermal plant at the foot of Hengill, others look across the lava towards Þingvellir National Park.
Thermal Junior Suite and Junior SuiteThe Thermal Junior Suite is 37 m² with a king bed and a sofa bed, and sleeps up to three. The Junior Suite is 30 m² with a fireplace and a balcony with its own sauna.
Lava Suite and Aurora SuiteThe largest rooms in the hotel, at 54 and 65 m². Both have a king bed, a complimentary minibar and a private sauna, and are laid out with northern lights watching in mind.

Dining: Silfra Restaurant and the Northern Lights Bar

Silfra Restaurant is named after the fissure in Þingvellir where people snorkel between the continents. The kitchen cooks modern Nordic food from seasonal Icelandic ingredients, with lamb, Arctic char and other fish usually on the menu. It serves a breakfast buffet in the morning, plus lunch and dinner. Because there is nowhere else to eat nearby, we suggest booking a dinner table when you book your room.

The Northern Lights Bar is the room most people remember: low sofas, hides on the floor and windows that wrap around three sides, looking out over the lava. It serves cocktails, wine, Icelandic beer and light dishes, and it is the natural place to wait for the aurora on a winter evening.

Facilities

  • Lava Spa with spa treatments
  • Outdoor geothermal pool
  • Sauna and relaxation room
  • Silfra Restaurant
  • Northern Lights Bar
  • Breakfast buffet
  • Free Wi-Fi
  • Free parking
  • Suites with private sauna
  • Airport transfers and tours can be arranged

Things to do near ION Adventure Hotel

ION is a base for the western side of the Golden Circle. These are the things to do in the area that we would start with.

Þingvellir National ParkÞingvellir National ParkAbout 30 minutes by car along the lake. Walk through Almannagjá, see Öxarárfoss and stand where the Icelandic parliament first met.Snorkelling or diving in SilfraSnorkelling or diving in SilfraThe Silfra fissure is inside Þingvellir. Tours run all year in dry suits and need to be booked ahead; we can add one to your stay.Geysir and GullfossGeysir and GullfossAllow a full day. Geysir is about 1 hour 15 minutes from the hotel and Gullfoss ten minutes further.Kerið craterKerið craterA red volcanic crater with a lake at the bottom, around 40 minutes to the south-east. An easy stop on the way to or from Selfoss.Reykjadalur hot spring valleyReykjadalur hot spring valleyA hike of about an hour each way from Hveragerði to a warm river you can bathe in. Under an hour's drive from the hotel.Hiking on Hengill and glacier tripsHiking on Hengill and glacier tripsMarked trails start close to the hotel and cross the Hengill geothermal area in summer. Snowmobile tours on Langjökull glacier leave from the Gullfoss area.

How to get to ION Adventure Hotel

From ReykjavíkTake Road 1 north to Mosfellsbær, then Road 36 towards Þingvellir, and turn right onto Road 360 to Nesjavellir. The drive takes about an hour. The shorter mountain road, Road 435 (Nesjavallaleið), is closed in winter, from about October to May. Map apps often suggest it anyway, so follow the hotel's advice and use Roads 36 and 360.
From Keflavík AirportAbout 1.5 hours. Drive Road 41 towards Reykjavík, join Road 1 and continue as above. You need a rental car or a private transfer; there is no public bus to Nesjavellir.

When to stay

SummerFrom June to August it barely gets dark, the hiking trails on Hengill are open and Road 435 gives a short scenic route from Reykjavík. The Golden Circle is busy in the middle of the day, so staying here lets you visit Þingvellir early or late.
WinterFrom September to mid-April the hotel is a good place for northern lights, because there is very little light around it. You still need a clear sky and some luck. Daylight is short in December and January, about four to five hours. Road 360 can be icy or snow-covered, so check umferdin.is and the forecast on vedur.is before you set off, and rent a 4x4 in mid-winter.

Tips from a local

  • Book dinner at Silfra Restaurant in advance. The nearest other restaurants are a long drive away.
  • In winter ignore any route that uses Road 435. Go by Road 36 and Road 360.
  • Bring swimwear for the outdoor pool and sauna.
  • If you want space, pick a Deluxe room or a suite. Standard rooms are about 20 m².
  • Ask at reception about northern lights on clear nights. The bar is the best indoor spot to watch from.
  • Two nights work well: one day for Þingvellir and Silfra, one for Geysir and Gullfoss.

On the map

Open in Google Maps →

ION Adventure Hotel FAQ

Where is ION Adventure Hotel?

At Nesjavellir, on the south-west shore area of Lake Þingvallavatn in South Iceland, about 1 km from the Nesjavellir geothermal power plant. The postal address is Nesjavellir, 801 Selfoss, although the town of Selfoss is around 45 minutes away.

How far is ION Adventure Hotel from Reykjavík?

Roughly 50 km. The drive takes about an hour, depending on the route and the season.

Can you see the northern lights from ION Adventure Hotel?

Yes, when the sky is clear and the aurora is active, between September and mid-April. The hotel is far from town lights and the Northern Lights Bar has wide windows facing the lava field. Sightings can never be promised.

Does ION Adventure Hotel have a spa and pool?

Yes. The Lava Spa has a small outdoor pool heated with geothermal water, a sauna and a relaxation room, and offers treatments that should be booked ahead.

Is breakfast included at ION Adventure Hotel?

A breakfast buffet is served in Silfra Restaurant. Whether it is included depends on the rate, so we confirm this for you when we book.

Is there parking at ION Adventure Hotel?

Yes, there is free parking outside the hotel.

Are pets allowed?

No, the hotel does not accept pets.

Is ION Adventure Hotel good for children?

Children are welcome and several room types can take an extra bed for a child up to 12. The hotel is quiet and design-led, so it suits older children better than toddlers.

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HotelION Adventure Hotel