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  5. ION Adventure Hotel
ION Adventure Hotel – all-inclusive · Nesjavellir, South Region, Iceland
Nesjavellir, South Region, Iceland

ION Adventure Hotel

Rating: 8.2/10 · Read reviews

About this resort

ION Adventure Hotel in Nesjavellir, Iceland offers both comfort and an ideal location. This four-star accommodation receives high praise from its guests.

Stay in Nesjavellir

ION Adventure Hotel is a smart choice for diverse travelers, using Nesjavellir as your base.

Facilities & features

Check-in / check-out
16:00 / 12:00
Max. number of people per room
2
Number of rooms
46
Year of manufacture
2013
Paying at the hotel
Visa, Maestro, JCB, Mastercard, American Express, Visa Electron, Diners Club, cash

Facilities

Barconference roomFitnessFree parkingFree WiFiJacuzziEV charging pointRestaurantSpa & wellnesstransferSwimming pool

Your ideal stay

Design & trendyAccessible

Sports facilities

Diving schoolBike rental

Suitable for

Families

Accommodation type

Hotel

Children

Kid-friendlyPlayground

Location

Garden / terrace

In the surrounding area

Hveragerði Centre13.2 km
Selfoss Centre22.8 km
Mosfellsbær Centre22.8 km
Beach4.7 km
Keflavik International80 km · ±82 min

Location

Nesjavellir vid Thingvallavatn, 801, Nesjavellir, South Region, Iceland

8.2/10Read reviews
View resort

Location & surroundings

🚗

Airport distance

80 km

Keflavik International (KEF) · ± 82 min

Show map
Nesjavellir, South RegionION Adventure HotelNesjavellir, South Region8,2View resort✈ Keflavik International (KEF)

Airports nearby

Keflavik International (KEF)80 km · 82 min
Akureyri International (AEY)387 km · 355 min

Climate Nesjavellir, South Region, Iceland

Januaryduring the day -2.1°C/28°F · at night -8.5°C/17°F · seawater 4.2°C/40°F · 1.3 hours of sunshine per day · 6.2 mm of rain per day

Week1: during the day -3.2°C/26°F · at night -11°C/12°F · seawater 4.7°C/40°F · 1 hours of sunshine per day · 2.3 mm of rain per day

Week2: during the day -2.5°C/28°F · at night -7.6°C/18°F · seawater 3.4°C/38°F · 1.8 hours of sunshine per day · 4.4 mm of rain per day

Week3: during the day -2.2°C/28°F · at night -8.2°C/17°F · seawater 4.2°C/40°F · 1.6 hours of sunshine per day · 7.2 mm of rain per day

Week4: during the day -1.1°C/30°F · at night -6.8°C/20°F · seawater 4.5°C/40°F · 1.2 hours of sunshine per day · 7.7 mm of rain per day

Week5: during the day -1.4°C/29°F · at night -8.8°C/16°F · seawater 4.3°C/40°F · 1.1 hours of sunshine per day · 9.5 mm of rain per day

Februaryduring the day -0.2°C/32°F · at night -6.4°C/20°F · seawater 5.3°C/42°F · 2.8 hours of sunshine per day · 6.5 mm of rain per day

Week5: during the day -1.4°C/29°F · at night -8.8°C/16°F · seawater 4.3°C/40°F · 1.1 hours of sunshine per day · 9.5 mm of rain per day

Week6: during the day -1.8°C/29°F · at night -9.4°C/15°F · 2.9 hours of sunshine per day · 7.8 mm of rain per day

Week7: during the day 0.6°C/33°F · at night -3.7°C/25°F · seawater 5.4°C/42°F · 2.7 hours of sunshine per day · 4.2 mm of rain per day

Week8: during the day 1°C/34°F · at night -4.9°C/23°F · seawater 5.9°C/43°F · 3.1 hours of sunshine per day · 4.6 mm of rain per day

Week9: during the day 0.7°C/33°F · at night -5.1°C/23°F · seawater 5.6°C/42°F · 4.2 hours of sunshine per day · 6.6 mm of rain per day

Marchduring the day 1.2°C/34°F · at night -4.6°C/24°F · seawater 5.6°C/42°F · 6.1 hours of sunshine per day · 4.6 mm of rain per day

Week9: during the day 0.7°C/33°F · at night -5.1°C/23°F · seawater 5.6°C/42°F · 4.2 hours of sunshine per day · 6.6 mm of rain per day

Week10: during the day -0.7°C/31°F · at night -6.9°C/20°F · seawater 5°C/41°F · 7.3 hours of sunshine per day · 3.8 mm of rain per day

Week11: during the day 0.6°C/33°F · at night -5.6°C/22°F · seawater 5.3°C/42°F · 6.7 hours of sunshine per day · 1 mm of rain per day

Week12: during the day 1.4°C/35°F · at night -3.7°C/25°F · seawater 5.8°C/42°F · 6 hours of sunshine per day · 4.7 mm of rain per day

Week13: during the day 1.7°C/35°F · at night -3.8°C/25°F · seawater 5.8°C/42°F · 6.7 hours of sunshine per day · 5.3 mm of rain per day

Week14: during the day 3.5°C/38°F · at night -2.6°C/27°F · seawater 5.9°C/43°F · 5.9 hours of sunshine per day · 5.9 mm of rain per day

Aprilduring the day 5.2°C/41°F · at night -1.4°C/29°F · seawater 6.7°C/44°F · 7.9 hours of sunshine per day · 4.7 mm of rain per day

Week14: during the day 3.5°C/38°F · at night -2.6°C/27°F · seawater 5.9°C/43°F · 5.9 hours of sunshine per day · 5.9 mm of rain per day

Week15: during the day 4.9°C/41°F · at night -1.5°C/29°F · seawater 6.6°C/44°F · 6.4 hours of sunshine per day · 4.2 mm of rain per day

Week16: during the day 4.9°C/41°F · at night -1.4°C/29°F · seawater 6.3°C/43°F · 8.6 hours of sunshine per day · 6.6 mm of rain per day

Week17: during the day 6°C/43°F · at night -2°C/28°F · seawater 6.9°C/44°F · 11.4 hours of sunshine per day · 3.5 mm of rain per day

Week18: during the day 6.9°C/44°F · at night 0.3°C/33°F · seawater 7.7°C/46°F · 7.4 hours of sunshine per day · 3.4 mm of rain per day

Mayduring the day 8.2°C/47°F · at night 2.3°C/36°F · seawater 8.9°C/48°F · 8.1 hours of sunshine per day · 5.3 mm of rain per day

Week18: during the day 6.9°C/44°F · at night 0.3°C/33°F · seawater 7.7°C/46°F · 7.4 hours of sunshine per day · 3.4 mm of rain per day

Week19: during the day 6.8°C/44°F · at night 1.8°C/35°F · seawater 7.9°C/46°F · 6.6 hours of sunshine per day · 10.3 mm of rain per day

Week20: during the day 8.9°C/48°F · at night 1.9°C/35°F · seawater 8.7°C/48°F · 9.2 hours of sunshine per day · 4.4 mm of rain per day

Week21: during the day 9.1°C/48°F · at night 2.9°C/37°F · seawater 9.9°C/50°F · 9.2 hours of sunshine per day · 5.8 mm of rain per day

Week22: during the day 9.4°C/49°F · at night 4.4°C/40°F · seawater 10.2°C/50°F · 8.3 hours of sunshine per day · 2.6 mm of rain per day

Juneduring the day 10.8°C/51°F · at night 4.6°C/40°F · seawater 9.9°C/50°F · 10 hours of sunshine per day · 3.3 mm of rain per day

Week23: during the day 7.1°C/45°F · at night 1.4°C/35°F · seawater 8.3°C/47°F · 11.4 hours of sunshine per day · 2.9 mm of rain per day

Week24: during the day 12.5°C/55°F · at night 4.6°C/40°F · seawater 9.3°C/49°F · 11.5 hours of sunshine per day · 0.8 mm of rain per day

Week25: during the day 10.5°C/51°F · at night 5.9°C/43°F · seawater 10°C/50°F · 4.8 hours of sunshine per day · 6.7 mm of rain per day

Week26: during the day 11.1°C/52°F · at night 5.5°C/42°F · seawater 10.7°C/51°F · 8.1 hours of sunshine per day · 4.9 mm of rain per day

Week27: during the day 12.9°C/55°F · at night 5.4°C/42°F · seawater 11.1°C/52°F · 14 hours of sunshine per day · 1.3 mm of rain per day

Julyduring the day 12.9°C/55°F · at night 7°C/45°F · seawater 12°C/54°F · 9.1 hours of sunshine per day · 3.8 mm of rain per day

Week27: during the day 12.9°C/55°F · at night 5.4°C/42°F · seawater 11.1°C/52°F · 14 hours of sunshine per day · 1.3 mm of rain per day

Week28: during the day 11.9°C/53°F · at night 6.7°C/44°F · seawater 11.4°C/53°F · 8.4 hours of sunshine per day · 5.7 mm of rain per day

Week29: during the day 14.6°C/58°F · at night 7.9°C/46°F · seawater 12.9°C/55°F · 8.6 hours of sunshine per day · 1.3 mm of rain per day

Week30: during the day 13°C/55°F · at night 7.9°C/46°F · seawater 12.8°C/55°F · 7.1 hours of sunshine per day · 4.5 mm of rain per day

Week31: during the day 12.1°C/54°F · at night 6.9°C/44°F · seawater 12°C/54°F · 7.4 hours of sunshine per day · 6.5 mm of rain per day

Augustduring the day 11.8°C/53°F · at night 6.3°C/43°F · seawater 12°C/54°F · 7.5 hours of sunshine per day · 5.2 mm of rain per day

Week31: during the day 12.1°C/54°F · at night 6.9°C/44°F · seawater 12°C/54°F · 7.4 hours of sunshine per day · 6.5 mm of rain per day

Week32: during the day 13.3°C/56°F · at night 6.6°C/44°F · seawater 11.9°C/53°F · 10.2 hours of sunshine per day · 3.3 mm of rain per day

Week33: during the day 11.7°C/53°F · at night 6.6°C/44°F · seawater 11.9°C/53°F · 6.1 hours of sunshine per day · 3.9 mm of rain per day

Week34: during the day 11.9°C/53°F · at night 5.6°C/42°F · seawater 12.1°C/54°F · 7.6 hours of sunshine per day · 2.7 mm of rain per day

Week35: during the day 12°C/54°F · at night 6.7°C/44°F · seawater 11.9°C/53°F · 7.7 hours of sunshine per day · 8.2 mm of rain per day

Week36: during the day 9.7°C/49°F · at night 5.2°C/41°F · seawater 12°C/54°F · 6.2 hours of sunshine per day · 6.7 mm of rain per day

Septemberduring the day 7.9°C/46°F · at night 2.6°C/37°F · seawater 11°C/52°F · 6.1 hours of sunshine per day · 5.1 mm of rain per day

Week36: during the day 9.7°C/49°F · at night 5.2°C/41°F · seawater 12°C/54°F · 6.2 hours of sunshine per day · 6.7 mm of rain per day

Week37: during the day 8.9°C/48°F · at night 2.5°C/37°F · seawater 11.3°C/52°F · 8.5 hours of sunshine per day · 4.8 mm of rain per day

Week38: during the day 7.3°C/45°F · at night 1.5°C/35°F · seawater 10.9°C/52°F · 6 hours of sunshine per day · 3.5 mm of rain per day

Week39: during the day 7.5°C/46°F · at night 2.4°C/36°F · seawater 10.4°C/51°F · 4.9 hours of sunshine per day · 6 mm of rain per day

Week40: during the day 6.1°C/43°F · at night 1.2°C/34°F · seawater 10.2°C/50°F · 4.9 hours of sunshine per day · 4.4 mm of rain per day

Octoberduring the day 3.7°C/39°F · at night -1.1°C/30°F · seawater 8.9°C/48°F · 4.1 hours of sunshine per day · 5.3 mm of rain per day

Week40: during the day 6.1°C/43°F · at night 1.2°C/34°F · seawater 10.2°C/50°F · 4.9 hours of sunshine per day · 4.4 mm of rain per day

Week41: during the day 3.1°C/38°F · at night -1.4°C/29°F · seawater 9.6°C/49°F · 4.7 hours of sunshine per day · 5.8 mm of rain per day

Week42: during the day 5.6°C/42°F · at night 1.2°C/34°F · seawater 9.3°C/49°F · 1.8 hours of sunshine per day · 6.5 mm of rain per day

Week43: during the day 2°C/36°F · at night -2.9°C/27°F · seawater 8.2°C/47°F · 4.8 hours of sunshine per day · 3.4 mm of rain per day

Week44: during the day 1.5°C/35°F · at night -3.6°C/26°F · seawater 7.2°C/45°F · 4.4 hours of sunshine per day · 6.2 mm of rain per day

Novemberduring the day 0.2°C/32°F · at night -4.1°C/25°F · seawater 6.4°C/44°F · 2.6 hours of sunshine per day · 3.9 mm of rain per day

Week44: during the day 1.5°C/35°F · at night -3.6°C/26°F · seawater 7.2°C/45°F · 4.4 hours of sunshine per day · 6.2 mm of rain per day

Week45: during the day 3.7°C/39°F · at night -0.1°C/32°F · seawater 6.8°C/44°F · 2.2 hours of sunshine per day · 5.3 mm of rain per day

Week46: during the day 1.5°C/35°F · at night -2.3°C/28°F · seawater 6.5°C/44°F · 3 hours of sunshine per day · 3.9 mm of rain per day

Week47: during the day -2°C/28°F · at night -5.8°C/22°F · seawater 6.2°C/43°F · 2.7 hours of sunshine per day · 3.9 mm of rain per day

Week48: during the day -2.6°C/27°F · at night -7°C/19°F · seawater 5.9°C/43°F · 1.5 hours of sunshine per day · 1.8 mm of rain per day

Week49: during the day -1.2°C/30°F · at night -5.9°C/21°F · seawater 5.7°C/42°F · 1.6 hours of sunshine per day · 2.3 mm of rain per day

Decemberduring the day -0.8°C/31°F · at night -5.8°C/22°F · seawater 6°C/43°F · 0.6 hours of sunshine per day · 5.1 mm of rain per day

Week49: during the day -1.2°C/30°F · at night -5.9°C/21°F · seawater 5.7°C/42°F · 1.6 hours of sunshine per day · 2.3 mm of rain per day

Week50: during the day 1.2°C/34°F · at night -2.8°C/27°F · seawater 5.9°C/43°F · 0.1 hours of sunshine per day · 8.2 mm of rain per day

Week51: during the day -2.3°C/28°F · at night -6.9°C/20°F · seawater 5.7°C/42°F · 0.5 hours of sunshine per day · 2.1 mm of rain per day

Week52: during the day -1.1°C/30°F · at night -7.5°C/19°F · seawater 6.6°C/44°F · 0.2 hours of sunshine per day · 7.6 mm of rain per day

Frequently asked questions

What is the nearest airport to ION Adventure Hotel?

The nearest international airport is Keflavik International, about 68 km away.

Is ION Adventure Hotel suitable for families?

Yes, ION Adventure Hotel has facilities suitable for families with children.

Does ION Adventure Hotel have a spa or wellness area?

Yes, ION Adventure Hotel has a spa and wellness offering to relax.

What guests say

8.2

Very good

704 reviews via Google

As a solo traveler, I couldn't have asked for a better stay at ION Adventure Hotel. The location is absolutely incredible, surrounded by breathtaking landscapes that make the experience feel truly unique. The rooms were beautiful, comfortable, and the perfect place to relax after a day of exploring. What made my stay especially memorable was the outstanding service. Aneta and Arek were incredibly sweet, welcoming, and genuinely kind. Traveling alone can sometimes feel a bit isolating, but they made me feel right at home from the moment I arrived. I highly recommend to anyone visiting Iceland. Between the stunning setting, excellent rooms, and wonderful hospitality, it was a highlight of my trip.

5/5Kingry· 2026-06-17· via Google

INCREDIBLE experience at the Ion Adventure hotel! This is one of my favourite hotels I’ve stayed at all over the world, and I am a fussy guest with high expectations. The location is remote, however we had no issues driving from Reykjavik, in fact we loved the drive - this is obviously weather dependent and you should check the road status before. The hotel is next to a geothermal power plant which we found unique and interesting. For those that didn’t look at the hotel’s history, it is a converted power plant staff accommodation site. The location is so quiet and relaxing, the staff are all incredibly friendly and helpful. Food is AMAZING - yes it’s expensive but it’s expensive everywhere in Iceland and this is even more remote. Being vegetarian made it slightly limited over a 3 day stay but the cauliflower was really good. The overall vibe is gorgeous and we loved the Scandi design and especially the hot geothermal swimming pool and sauna! You cannot beat the views and we saw the Northern Lights both nights from the car park. Unfortunately due to a storm we had to cut our trip a night short - the front desk staff were so helpful and even transferred our booking to the Ion City hotel in Reykjavik so we didn’t need to book another new place and be out of pocket! I can’t wait to return one day, such a special place.

5/5Lucy Ham· 2026-04-06· via Google

We stayed at the ION Adventure Hotel our last night in Iceland and it was the perfect end to our week of travel. Our day leading up to our stay at ION was extremely chaotic and tiring. We got a flat tire on a gravel road and still had around 5 hours of driving to do that day, which turned into 6 due to an hour backup of standstill traffic at a bridge under construction. We had originally planned on an 8pm dinner reservation at Silfra, that we pushed to 9pm due to the flat tire, and then were going to have to cancel due to the bridge traffic, but the ION staff were incredibly caring and accommodating and said that we could order ahead and they would keep our meal warm until our arrival. We didn't end up making it to the hotel until 10:30pm, when we were greeted with complimentary glasses of sparkling wine. The receptionist was aware that we had ordered food and directed us to the restaurant where the staff were amazing and so kind to us after our long day. They had us put our bags in our room and brought us our dinner and a surprise dessert to the Northern Lights bar, where we were able to enjoy a delicious meal and drinks in a calm and scenic setting. Our room was perfect, with a great view and comfy bed that provided much needed rest. ION was also the perfect base for our tour of the Golden Circle before heading to the airport for our flight in the evening, and the ION breakfast that morning was a tasty start that fuelled our day. Overall, ION was an 11/10, with unparalleled service that we are so grateful for.

5/5nikki ross· 2026-06-01· via Google

Really gorgeous hotel. Some other reviews mention the power plant nearby, it was absolutely not an issue during our stay. Our room was beautiful with a stunning view, the pool is super nice, and the breakfast is delicious. Highly recommend.

5/5Claire Salmon· 2026-05-11· via Google

Our stay at the ION Adventure Hotel was truly exceptional from start to finish. What stood out the most was the incredible staff; both at the front desk & in the restaurant. Everyone was warm, attentive, and genuinely committed to making our experience memorable. The food was absolutely delicious, and the service in the restaurant was outstanding. Every meal felt like a highlight of the trip. We stayed in a junior suite on the ground floor, which came with its own outdoor space, such a special touch. The room was beautifully designed, comfortable, and quickly became our little retreat. We absolutely loved it. The pool area was also very unique and added to the overall experience, it’s definitely something you shouldn’t miss while staying there. I would highly recommend this hotel and wouldn’t hesitate to return. It was an amazing experience all around.

5/5Mariana S· 2026-04-04· via Google
✏️ Edit in admin

Weather forecast Nesjavellir, South Region (16 days)

MonOct 19🌧️7°3°
TueOct 20🌦️5°0°
WedOct 21🌦️3°-2°
ThuOct 22🌨️1°-1°
FriOct 23🌨️-1°-5°
SatOct 24☁️0°-5°
SunOct 25☁️2°-3°
MonOct 26🌨️1°-2°
TueOct 27🌨️2°-2°
WedOct 28🌦️1°-2°
ThuOct 29🌦️1°-1°
FriOct 30🌨️3°1°
SatOct 31🌨️3°-1°
SunNov 1☁️-1°-2°
MonNov 2🌨️3°-2°
TueNov 3🌧️3°1°

Things to do nearby

#1Þingvellir
national park17,1 km

Þingvellir

Þingvellir (Icelandic: [ˈθiŋkˌvɛtlɪr̥] , anglicised as Thingvellir) was the site of the Alþing, the annual parliament of Iceland from the year 930 until the last session held at Þingvellir in 1798. Since 1881, the parliament has been located within Alþingishúsið in Iceland's capital, Reykjavík. Þingvellir is now a national park in the municipality of Bláskógabyggð in southwestern Iceland, about 40

Read more
#2Þingvallavatn
lake9,8 km

Þingvallavatn

Þingvallavatn (Icelandic pronunciation: [ˈθiŋkˌvatlaˌvahtn̥] , lit. 'Þingvellir Lake'), anglicised as Thingvallavatn, is a rift valley lake in southwestern Iceland. With a surface of 84 km2 (32 sq mi) it is the largest natural lake in Iceland. Its greatest depth is 114 m (374 ft).

Read more
#3Hengill
mountain4,6 km

Hengill

Hengill (Icelandic pronunciation: [ˈheiɲcɪtl̥] ) is a volcanic table mountain situated in the south-west of Iceland, to the south of Þingvellir. The volcano is still active, as evidenced by its numerous hot springs and fumaroles, but the last eruption occurred approximately 2,000 years ago, before the settlement of Iceland.

Read more
#4Esja
mountain25,6 km

Esja

Esja (Icelandic pronunciation: [ˈɛːsja]; often Esjan [ˈɛːsjan], with the feminine definite article) is a 914 m (2,999 ft) mountain situated in the south-west of Iceland, about ten kilometres north of Iceland's capital city Reykjavík. Esja is not a single mountain, but a volcanic mountain range, made from basalt and tuff.

Read more
#5Öxarárfoss
waterfall18,0 km

Öxarárfoss

Öxarárfoss (Icelandic pronunciation: [ˈœksarˌaurˌfɔsː] ) is a waterfall in Þingvellir National Park, Iceland. It flows from the river Öxará over the Almannagjá [ˈalˌmanːaˌcauː]. The pool at the base of the waterfall is filled with rocks and is often extremely icy during winter.

Read more
#6Apavatn
lake29,3 km

Apavatn

Apavatn (Icelandic pronunciation: [ˈaːpaˌvahtn̥] ) is a lake in southwest Iceland. With a surface area of around 13 km2 it is much larger than the neighbouring lake of Laugarvatn, which lies to the north of Apavatn. Apavatn is renowned for its good fishing, especially trout.

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#7Álafoss
waterfall21,8 km

Álafoss

Álafoss (Icelandic pronunciation: [ˈauːlaˌfɔsː]; eel falls) is a waterfall on the river Varmá in Mosfellsbær, Iceland.

Read more
#8Lundey, Faxaflói
island29,6 km

Lundey, Faxaflói

Lundey (Icelandic: [ˈlʏntˌeiː] , "Puffin Island") is a small, uninhabited island off the western coast of Reykjavík, Iceland in Faxaflói Bay. There is one structure present on the island. Lundey lies less than 7 kilometres (4.3 mi) from the city center.

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Source: nearby places via Wikipedia.