Seltun is a geothermal area in the Krysuvik volcanic zone on the Reykjanes peninsula, on Route 42 about 40 minutes from central Reykjavik. It sits directly on the Mid-Atlantic Ridge, and the maintained boardwalk loop takes roughly 20 to 40 minutes.
What and where Seltun is
Seltun is in the Krysuvik volcanic zone on the Reykjanes peninsula. The site is on Route 42, about 40 minutes from central Reykjavik, close to the lake at Kleifarvatn and the bird cliffs of Krysuvikurberg. It also sits directly on the Mid-Atlantic Ridge.
Mud pots and fumaroles
The geothermal field has bubbling mud pots, hissing fumaroles, and steaming vents. Its hot springs reach about 80 to 100 degrees Celsius.
Why the ground is so colourful
The ground colours come from mineral staining. Sulphur, iron oxide, and silica stain the surface in shades of yellow, orange, red, and green.
The boardwalk trail
A maintained boardwalk with viewing platforms keeps visitors above the hot, fragile ground. The loop takes roughly 20 to 40 minutes.
Seeing Seltun on Reykjanes
To compare options, see Reykjanes tours. For live conditions, check safetravel.is.
Build a sensible route
Before setting off, use the Driving Distance Calculator to compare Seltun: geothermal area in Krysuvik with the other places you plan to visit.
