reykjanes · Iceland
Kleifarvatn
About Kleifarvatn
Kleifarvatn is a deep, eerie lake on the Reykjanes Peninsula, surrounded by volcanic mountains and black sand beaches — one of Iceland's most mysterious and atmospheric landscapes.
History & Background
The lake sits in a volcanic caldera on the Reykjanes Ridge and has no visible outlet — water drains away through fissures in the volcanic rock below. Following a major earthquake in 2000, cracks opened in the lake bed and the water level dropped dramatically over several years, shrinking the lake significantly. The surrounding lava fields are hauntingly beautiful, and the lake has a reputation for being one of Iceland's most photogenic and otherworldly landscapes.
Did You Know?
- ✔No visible outlet — water drains through volcanic fissures
- ✔Lake level dropped significantly after 2000 earthquake
- ✔Deepest lake on the Reykjanes Peninsula
- ✔Surrounded by black volcanic sand beaches
- ✔Located within the Reykjanes UNESCO Global Geopark
Tours Near Kleifarvatn
Best-rated Iceland experiences — book with free cancellation
Why Visit
Witness the raw, otherworldly beauty of Iceland's largest lake on the Reykjanes Peninsula.
Did You Know?
Kleifarvatn's depth dramatically changed after a 2000 earthquake, shrinking its surface by 20% before slowly recovering.
Legends of Kleifarvatn
Kleifarvatn has been part of Icelandic folklore for generations. Local tales speak of hidden people (huldufólk) and other supernatural beings who inhabit the area. According to tradition, this place deserves respect and visitors should be mindful of the ancient spirits who call it home.
Hidden Gems Nearby
Off-Peak Visit
Visit Kleifarvatn during shoulder season (May or September) for a perfect balance of access and solitude.
You'll experience the site without summer crowds while still having good weather and daylight.
Local Flora
Look for the native Icelandic plants growing in the area — Arctic thyme, moss campion, and various lichens.
These resilient plants have adapted to survive harsh conditions and add subtle beauty to the landscape.
Changing Light
Kleifarvatn looks dramatically different depending on the time of day and weather conditions.
Cloud shadows, rain showers, and low-angle sunlight can transform the landscape within minutes — Iceland's famous "four seasons in one day."
Practical Information
Best Time
Late morning to afternoon, especially on clear days
Duration
1-2 hours
Access
Paved road (Route 42) provides easy access to viewpoints.
Frequently Asked Questions
When is the best time to visit?▾
Summer (June-August) offers the best weather and longest daylight hours. However, each season offers unique beauty.
Is this place wheelchair accessible?▾
Accessibility varies by location. Major tourist sites often have paved paths, while more remote areas may require hiking.
Do I need to book in advance?▾
Most natural attractions in Iceland are open access and free. No booking is needed unless it involves a guided tour.
