Iceland's south coast is famous for its dramatic landscapes, and two glacier lagoons stand out: Jökulsárlón and Fjallsárlón. Both are located at the edge of Vatnajökull, Europe's largest ice cap, and both offer unforgettable views of icebergs floating in milky-blue water. But they are not identical. Jökulsárlón is larger, more famous, and busier, while Fjallsárlón is smaller, quieter, and often described as more intimate. This article compares them in detail—size, accessibility, tours, crowds, and unique features—so you can decide which one (or both) to include in your itinerary.
If you are planning a trip along the Ring Road, you will likely pass both lagoons. They are only about 10 kilometres apart, making it easy to visit both in one day. But if time is limited, understanding the differences will help you choose.
Location and How to Get There
Both lagoons lie off Route 1 (the Ring Road) in southeast Iceland, roughly halfway between Vík and Höfn.
- Jökulsárlón is directly beside the Ring Road, about 370 km from Reykjavík. The turn-off is clearly signposted. Parking is free but can fill up in summer. A large car park and toilet facilities are available.
- Fjallsárlón is about 10 km west of Jökulsárlón. To reach it, turn off Route 1 onto a gravel road (Fjallsárlónsvegur) and drive 2 km. The road is bumpy but usually passable by regular car in summer. In winter, 4x4 may be needed. Parking is also free.
Both lagoons are accessible year-round, but road conditions vary. Check winter driving tips if visiting between October and March.
Size and Scenery
The most obvious difference is scale.
Jökulsárlón: Vast and Iconic
Jökulsárlón is Iceland's deepest lake, reaching 248 metres at its deepest point. It covers about 18 square kilometres and has grown significantly since the 1930s due to glacial retreat. The lagoon is filled with icebergs calved from the Breiðamerkurjökull glacier, an outlet of Vatnajökull. The icebergs drift slowly towards the ocean, where they wash up on the nearby diamond beach. The sight is immense: you see a wide expanse of water dotted with ice, with the glacier tongue visible in the distance. The colours range from milky white to deep blue, often with black volcanic ash stripes.
Fjallsárlón: Compact and Intimate
Fjallsárlón is smaller—about 4 square kilometres—and sits directly at the foot of the Fjallsjökull glacier tongue, another outlet of Vatnajökull. The glacier front is much closer to the water, making the icebergs look even larger relative to the setting. The lagoon is narrower, and the surrounding hills provide a more enclosed, serene atmosphere. Many visitors feel that Fjallsárlón offers a more dramatic view because the glacier looms directly behind the icebergs.
Tours and Activities
Both lagoons offer boat tours, but the options differ.
Jökulsárlón Boat Tours
Jökulsárlón has two main boat tour operators: Amphibian (large, wheeled boats that drive into the water) and Zodiac (small, inflatable boats). Both run from May to October only.
- Amphibian tour: 30–40 minutes. Costs around 7,900 ISK per adult (2025 prices). Boats hold 30–40 passengers. You get close to icebergs and may see seals. A guide explains geology and folklore.
- Zodiac tour: 1 hour. Costs about 14,900 ISK per adult. Limited to 12 passengers. Faster, more thrilling, and gets you right up to the glacier face. Must be able to climb into the boat.
No boat tours operate in winter (November–April). You can still walk along the shore and view icebergs from land.
Fjallsárlón Boat Tours
Fjallsárlón offers only zodiac tours, operated by Fjallsárlón Glacier Lagoon Boat Tours. These run from June to September, weather permitting. The tour lasts about 45 minutes and costs 12,500 ISK per adult (2025). Boats are smaller (8–10 passengers), and the experience is more personal. You navigate among icebergs and approach the glacier front closely. Because the lagoon is smaller, the tour feels more immersive.
For those wanting to combine a lagoon visit with a glacier hike, consider a tour from Skaftafell or Sólheimajökull, but those are different locations.
Facilities and Amenities
Jökulsárlón has a large visitor centre (opened 2023) with a café, restrooms, and a gift shop. There is a food truck in summer. The parking lot is paved and large. In peak season (June–August), it can be crowded, with tour buses arriving throughout the day.
Fjallsárlón has a small kiosk with hot drinks and snacks, plus portable toilets. There is no café or shop. The parking area is gravel and smaller. Facilities are basic, but the trade-off is fewer people.
Crowds and Atmosphere
Jökulsárlón is one of Iceland's most visited natural attractions, with over 1 million visitors annually. In summer, expect crowds from 10:00 to 16:00. The atmosphere is lively, almost touristy, but the sheer size of the lagoon means you can still find quiet spots along the shore.
Fjallsárlón receives far fewer visitors—perhaps 100,000 per year. Even in high season, it feels peaceful. You can often have the shoreline almost to yourself, especially early morning or late evening. The quiet adds to the sense of wilderness.
Diamond Beach
One unique feature of Jökulsárlón is its connection to the sea. The lagoon drains into the ocean through a short channel, and icebergs wash up on the black sand beach—called Diamond Beach (Breiðamerkursandur). Here, ice chunks glitter like diamonds against the volcanic sand. It is a must-see and a photographer's paradise. Fjallsárlón does not have a direct outlet to the sea, so no diamond beach.
Which One Should You Visit?
Your choice depends on your priorities.
- Visit Jökulsárlón if: you want the full iconic experience, including a boat tour and diamond beach; you have limited time and want the most famous spot; you prefer good facilities and easy access.
- Visit Fjallsárlón if: you prefer fewer crowds and a more serene setting; you want to get very close to a glacier front; you are on a budget (parking is free, and the zodiac tour is slightly cheaper than Jökulsárlón's zodiac).
Many travellers visit both, as they are only 10 minutes apart. A common itinerary is to stop at Jökulsárlón first, walk along the shore and see diamond beach, then drive to Fjallsárlón for a quieter experience or a zodiac tour. If you are driving the south coast in 3 days, you can easily include both.
Practical Tips for Visiting
- Best time of day: Early morning (before 9:00) or late afternoon (after 17:00) for fewer crowds and better light. Midnight sun in summer allows evening visits.
- Season: Summer (June–August) offers boat tours and mild weather. Winter (November–March) has fewer visitors and possible northern lights, but boat tours stop and roads may be icy.
- What to wear: Warm, waterproof layers and sturdy shoes. It is windy and cold even in summer near the glacier. Check our guide on what to pack for Iceland for more details.
- Photography: A polarising filter helps reduce glare on the water. A telephoto lens captures iceberg details. For diamond beach, a wide-angle lens is useful.
- Safety: Stay on marked paths. Icebergs can be unstable, and the water is freezing. Do not climb on icebergs.
Costs and Budget
Both lagoons are free to visit (parking and walking along the shore). Boat tours are the main expense. For a budget-friendly option, skip the boat and enjoy the view from land—it is still spectacular. If you are planning a budget trip, consider that Jökulsárlón's café is pricier than bringing your own snacks.
Nearby Attractions
The area around both lagoons offers more to explore.
- Skaftafell National Park (part of Vatnajökull National Park) is about 60 km west. It has hiking trails, including the famous Svartifoss waterfall.
- Vík town is about 200 km west, with the Reynisfjara black sand beach and basalt columns.
- Höfn town is about 80 km east, known for lobster restaurants.
- Glacier hikes on Vatnajökull or Skaftafell can be booked from nearby bases.
If you are staying overnight, consider guesthouses in the area like Hali Country Hotel or Fosshótel Vatnajökull.
Conclusion
Both Jökulsárlón and Fjallsárlón are spectacular and worth visiting. Jökulsárlón offers the classic experience with boat tours, diamond beach, and facilities. Fjallsárlón provides a quieter, more intimate encounter with the glacier. If you have time, see both. If not, choose based on whether you prioritise convenience and variety (Jökulsárlón) or tranquillity and proximity to the glacier (Fjallsárlón). Either way, you will witness one of Iceland's most stunning natural wonders.