Plizio Visual Lab

Hengill

Plizio editorial teamUpdated: Jun 2026Data Sources

Mountain

Weather…

Hengill is an imposing volcanic massif in southwest Iceland, located near the capital Reykjavík, covering an area of about 100 square kilometers. The highest point of the massif, Skeggjahluti, reaches an elevation of 803 meters. Geologically, Hengill consists of several craters and fissure systems that are part of an active volcanic zone. The region is of immense economic importance as it forms the basis for the Hellisheiði and Nesjavellir power stations, which provide much of the capital's geothermal energy and hot water. Beyond industrial use, Hengill is a popular destination for hikers, featuring a well-developed network of trails through steaming fumarole fields and hot springs. Historically, the area was mentioned in the Icelandic Sagas, confirming its long-standing cultural roots. The landscape is characterized by rugged lava formations and deep fissures that testify to the tectonic stretching of the island.

Location: Iceland
Nearby: Mosfellsbær (20 km)

Best time to visit & climate

The most pleasant time to visit is Jun–Aug.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	-1	-1	0	3	6	9	11	10	8	4	1	-1
Rain mm	179	162	161	123	96	86	105	121	184	149	149	182

📋 Practical info

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Getting there

Situated close to the capital, this vast geothermal massif is easily reached via a short drive along the main paved highways. The primary trailheads are located near a large geothermal power station.

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Best season

Summer is undeniably the premier season for traversing the extensive trail network. Winter turns the landscape into a snowy wonderland, but heavy snowfall can completely obscure the path markers.

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Terrain & paths

The sprawling area provides a diverse mix of gentle grassy valleys, rolling hills, and moderately steep rocky ascents. Hikers will frequently encounter bubbling hot springs and raw steam vents.

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What to bring

Dependable, waterproof hiking shoes are essential for navigating the often muddy trails near geothermal vents. A bathing suit and towel are highly recommended if you plan to soak in the warm rivers.

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Parking

Generous and free parking facilities are provided right at the valley entrances and near the power station. These lots act as the central gathering hubs for hikers before they head into the hills.

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Safety

Extreme caution is required around the fragile geothermal features; water boiling points can cause severe burns. Stick strictly to the marked paths to avoid stepping on dangerously thin ground crusts.

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Time needed

Short relaxing walks into the main hot spring valley usually take two to three hours. Exploring the deeper, more complex mountain circuits can easily occupy an entire enthusiastic day of trekking.