The Bridge Between Continents & Reykjanes UNESCO Geopark

The eruptions get the headlines, but the Reykjanes Peninsula is geologically spectacular even when nothing is erupting — and most of its signature sights are open and accessible all year. This guide walks through the Bridge Between Continents, the boiling earth of Gunnuhver, and the other landmarks of the Reykjanes UNESCO Global Geopark that anchor a typical Reykjanes tour.

Why Reykjanes Is a UNESCO Global Geopark

Reykjanes is one of the very few places on Earth where the Mid-Atlantic Ridge — the seam between two of the planet’s great tectonic plates — rises above sea level on dry land. Almost everywhere else, this boundary lies deep underwater. That single fact earned the peninsula its UNESCO Global Geopark status, and it’s why the landscape feels so raw: you’re standing directly on the join between continents. The Geopark packs in around a hundred craters, lava fields, geothermal areas, bird cliffs, and black-sand shores.

The Bridge Between Continents

The most photographed expression of all this is the Bridge Between Continents: a small footbridge — about 15 metres long — spanning a sandy rift valley where the North American and Eurasian plates are slowly pulling apart. Walk across it and you have, symbolically, stepped from one continent to the other. It’s a short, easy, free stop included on most Reykjanes tours, and a guaranteed photo regardless of what the volcanoes are doing.

The plates here are separating at roughly the rate your fingernails grow — a couple of centimetres a year — which is what keeps the whole peninsula cracking, steaming, and occasionally erupting.

Gunnuhver — Iceland’s Largest Mud Pool

A short drive away, Gunnuhver is a furious cauldron of boiling grey clay and roaring steam — Iceland’s largest mud pool, around 20 metres across. Steam from a superheated geothermal reservoir condenses, mixes with surface water, and turns acidic, dissolving the lava rock into the seething clay you see. A boardwalk and viewing platform keep you at a safe distance from ground that is genuinely dangerous to step on.

The name comes from local legend: Gunna, a vengeful ghost, was said to have been lured into the hot spring and trapped there by a priest. It’s a fittingly dramatic backstory for one of the most violent-looking spots in Iceland.

The Rest of the Geopark Loop

A full-day tour usually strings together several more stops:

Krýsuvík / Seltún is a field of bubbling springs, hissing fumaroles, and sulphur-stained earth in vivid ochres and greens, all viewed from boardwalks. Lake Kleifarvatn is a deep, brooding lake hemmed by black-sand beaches and stark mountains — a favourite for its eerie stillness. And out on the windswept tip, Reykjanesviti is Iceland’s oldest lighthouse, standing above crashing Atlantic cliffs and seabird colonies since the early 1900s.

How to See It All

These Geopark sights are the reliable backbone of a Reykjanes day, and they don’t depend on an active eruption. If you’d rather take them in with minimal hiking, a Geopark sightseeing tour (from $133, rated 4.5/5) focuses on these landmarks with far less walking than an eruption-site hike; the featured full-day tour (from $132, rated 4.6/5 by 1,137+ travellers) pairs them with the volcano hike. Either way, a guide adds the geology and the legends that make these stops more than a photo stop.

Ready to Book?

Stand on the seam between two continents, peer into Iceland’s largest mud pool, and let a local guide bring the geology to life. See the featured Reykjanes Peninsula tour (from $132, rated 4.6/5 by 1,137+ travellers) and check live availability.