What is the indoor ice cave at Perlan?

Perlan's indoor ice cave is a 100-meter-long tunnel built from over 350 tonnes of snow and ice. It recreates a real Icelandic ice cave experience at a constant temperature of -10°C year-round. The cave features ice sculptures, light installations, and information about glaciology. Warm clothing is provided at the entrance.

Does Perlan have a planetarium?

Yes, Perlan houses Iceland's only planetarium, featuring a 360-degree fulldome projection system. Shows cover topics from the northern lights and Icelandic nature to the solar system. It is included in the museum admission ticket and shows run throughout the day.

Can I visit Perlan's observation deck for free?

The outdoor observation deck on the fourth floor offers 360-degree views of Reykjavik and the surrounding area. Access to the deck and the ground floor are free. The museum exhibits, ice cave, and planetarium require a paid ticket.

Is there a restaurant at Perlan?

The revolving restaurant under the glass dome offers fine dining with 360-degree views. It completes a full rotation roughly every two hours. Reservations are recommended, especially for dinner. There is also a more casual cafe on the ground floor.

Perlan: Reykjavik's Glass Dome Museum & Observation Deck

Reykjavik's revolving glass dome perched on Öskjuhlíð hill, housing a nature museum with an indoor ice cave, planetarium, and panoramic observation deck.

Updated February 1, 2026By the Iceland.org Travel Team

Location

Öskjuhlíð Hill

Reykjavik • 10 min from city center

Perlan (meaning "The Pearl") is a landmark glass dome building perched atop Öskjuhlíð hill in Reykjavik. Originally constructed over six massive hot water storage tanks that supply the city's geothermal heating, the building was redesigned by architect Ingimundur Sveinsson and opened in 1991. In 2017, it was reimagined as Wonders of Iceland, a nature museum featuring an indoor ice cave built from over 350 tonnes of real ice, a state-of-the-art planetarium, and interactive exhibits on glaciers, volcanoes, ocean life, and the northern lights. The outdoor observation deck provides sweeping 360-degree views of the capital and surrounding mountains.

Safety + sourcing

Last updated: 2026-02-01

This guide is for trip planning, not emergency guidance. Conditions in Iceland can change quickly—always check official alerts and road conditions before you drive or hike.

Sources to check

Ice Cave

100 m tunnel

Built from 350+ tonnes of snow and ice at -10°C year-round

Observation Deck

Free access

360-degree panoramic views from the fourth floor terrace

Location

Öskjuhlíð Hill

Reykjavik hilltop, about 10 minutes from city center

What to Expect

Indoor Ice Cave

Walk through a 100-meter tunnel of real ice and snow at -10°C, with sculptures and glaciology exhibits (warm clothing provided)

Planetarium Shows

Iceland's only planetarium with 360-degree fulldome projections covering northern lights, nature, and astronomy

Glacier & Volcano Exhibits

Interactive displays on Iceland's glaciers, volcanic systems, tectonic activity, and geological forces

Observation Deck

Free outdoor viewing platform with 360-degree panoramas of Reykjavik, Mount Esja, and the ocean

Revolving Restaurant

Fine dining under the glass dome with slowly rotating views of the entire Reykjavik skyline

Öskjuhlíð Nature

Walking and cycling trails through the wooded hillside surrounding Perlan, popular with locals year-round

Getting There

Perlan is located on Öskjuhlíð hill, about 2 km south of central Reykjavik. A free shuttle bus runs regularly from Harpa Concert Hall to Perlan. By car, follow Bústaðavegur to the hilltop — free parking is available on site. You can also walk or cycle through the pleasant wooded trails on Öskjuhlíð. The walk from downtown takes about 20-25 minutes.

Best Time to Visit

Perlan is open year-round. The museum and ice cave are indoor attractions, making them ideal for rainy or cold days. The observation deck is best enjoyed on clear days for maximum visibility. Allow at least 2-3 hours to experience all exhibits. Booking tickets online in advance can save time, especially during the busy summer months from June through August.

Planning help

Perlan FAQs

Quick answers with safety notes where it matters.

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