Jökulsárlón is a glacier lagoon in southeast Iceland, fed by Breiðamerkurjökull, an outlet of the Vatnajökull ice cap, and it sits about 380 kilometres east of Reykjavík on Route 1. It reaches about 284 metres at its deepest, which has been reported as the deepest of any lake in Iceland, and icebergs calve off the glacier and drift across the water toward the sea. This guide covers how to get there, the summer boat tours, the seals and icebergs, and the black-sand Diamond Beach beside it.
Jökulsárlón at a glance
| Jökulsárlón | |
|---|---|
| Location | Southeast Iceland, Vatnajökull National Park |
| Fed by | Breiðamerkurjökull, an outlet of Vatnajökull |
| From Reykjavík | About 380 km on Route 1, around 5 hours direct |
| From Vík | About 190 km, a little over two hours |
| Deepest point | About 284 metres |
| Boat tours | Summer, roughly May to October |
How the lagoon formed
The lagoon began to form in the 1930s, after Breiðamerkurjökull started to retreat and left a basin that filled with meltwater. It has kept growing as the ice draws back, and today the glacier front sits about 8 km from the ocean. The water now covers roughly 25 square kilometres and reaches about 284 metres at its deepest point, which has made it the deepest lake in Iceland. Chunks of ice break off the glacier and float across the surface, so the view changes from one visit to the next.
Getting there from Reykjavík and Vík
Jökulsárlón is on Route 1, the Ring Road, about 380 kilometres east of Reykjavík. A direct drive takes around five hours, but most people turn it into a longer day of 6 to 8 hours and stop at the south-coast sights along the way. From the village of Vík it is closer, about 190 kilometres and a little over two hours, which is why many travellers break the journey there or at Skaftafell rather than driving from the capital and back in one go. The road is paved the whole way, though winter conditions can slow the drive.
Boat tours and what you will see
In summer you can go out on the water. Larger amphibious boats run roughly May to October and take a steady, wider loop among the icebergs, while smaller Zodiac boats run roughly May to September and move faster and closer to the glacier face. Both put you at eye level with the ice, and seals are a common sight, either swimming in the lagoon or resting on the floating bergs. Operators set their own prices and the popular tours book up in summer, so it helps to compare South Coast tours before you travel. From the shore alone you can still watch the icebergs drift and, in the right season, look for seals without paying for a boat.
Diamond Beach
Across the road from the lagoon is Diamond Beach, whose Icelandic name is Breiðamerkursandur. Icebergs that reach the lagoon mouth wash out to sea and are pushed back onto the black volcanic sand, where they sit like clear and blue blocks against the dark shore. The contrast of ice on black sand is the reason it draws photographers, and the walk from the car park is short. It pairs naturally with the lagoon, so plan to see both in the same stop.
When to go
The lagoon is open year-round and each season looks different. Summer brings the boat tours, long daylight, and the easiest driving. Winter closes the boats but adds the chance of ice caves in the wider Vatnajökull area and, on clear nights, northern lights over the water. Whatever the month, allow time for both the lagoon and Diamond Beach, and check road conditions before a winter drive.
Allow time for the road
Check the Driving Distance Calculator when deciding how Jökulsárlón glacier lagoon: a practical visitor guide belongs in the rest of your itinerary.
