Best Guide to Grjótagjá Cave and Hot Springs in North Iceland

  • by Yanshu
  • North Iceland
  • 28 Apr 2024

Situated in Iceland's northeastern region, near Lake Mývatn, Grjótagjá Cave is a geological wonder with historical, geological, and cultural significance. Formed by volcanic activity thousands of years ago, it features rock formations and a thermal spring. Its natural beauty and ambiance attract visitors, showcasing Iceland's geological heritage

The mysterious Grjótagjá cave and hot spring in North Iceland
The mysterious Grjótagjá cave and hot spring in North Iceland

Grjótagjá Cave is a geological wonder located in Iceland, near Lake Mývatn in the north-eastern part of the country. This lava cave holds historical, geological, and cultural significance.

Formed by volcanic activity thousands of years ago, Grjótagjá Cave features intricate rock formations and a thermal spring within its depths. The cave is renowned for its stunning natural beauty, with its rugged walls and mystical ambiance captivating visitors.

The rock formations seen inside Grjótagjá cave in North Iceland. [Photo Credit to Dave Herring]

What’s So Unique About Grjótagjá Cave

The thermal spring within the cave was once a popular bathing spot for locals, providing a warm and soothing respite from Iceland’s chilly climate. However, due to volcanic activity in the area, the water temperature became too hot for comfortable bathing, and access to the cave was restricted for safety reasons.

Despite its restricted access, Grjótagjá Cave remains a popular destination for tourists and adventurers, offering a glimpse into Iceland’s geological past and its unique geothermal features. It has also gained cultural significance as a filming location for the popular television series “Game of Thrones,” adding to its allure and attracting fans from around the world.

While visitors are unable to bathe in the thermal waters as they once could, the cave continues to be a fascinating natural landmark, showcasing the dynamic forces that have shaped Iceland’s dramatic landscape over millennia.

 

A visitor at Grjótagjá hot spring cave in North Iceland
A visitor at Grjótagjá hot spring cave in North Iceland. [Photo credit to Yanshu Li]

How Grjótagjá Cave Was Formed

Grjótagjá is nestled within the dynamic and young volcanic terrain that characterizes much of North Iceland.

You find yourself surrounded by the Krafla volcanic system, known for its historical eruptions and ongoing geothermal activity.

The land here tells a story of fire and brimstone with features like Hverfjall, a tephra cone or tuff ring volcano, and the nearby Dimmuborgir, a labyrinth of rocks and irregular arches resulting from ancient lava flows.

Grjótagjá cave and hot spring in North Iceland by misha-martin
Rock formations inside Grjótagjá cave that houses a hot spring in North Iceland. [Photo credit to Misha Martin]

Formation of Grjótagjá

Grjótagjá is a striking lava cave formed within a rift that is part of the Mid-Atlantic Ridge snaking through Iceland.

This rift is the result of tectonic plates diverging, creating fissures and fractures in the Earth’s crust.

Over centuries, volcanic eruptions have filled these fissures with fluid lava. Upon cooling, the rocks solidify around the voids left behind, giving birth to numerous lava caves like Grjótagjá.

The heat from residual geothermal activity warms the water that has seeped into the cave, creating the enchanting hot springs you see today.

Rock formations inside Grjótagjá cave in North Iceland
The rock formations inside Grjótagjá cave in North Iceland. [Photo credit to Yanshu Li]

Grjótagjá Cave in History and Culture

Grjótagjá Cave holds a prominent place in both Icelandic culture and popular media, with its historically significant role as a shelter for outlaws and its rise to global fame as a filming location for HBO’s “Game of Thrones.”

Role in ‘Game of Thrones’

You might recognize Grjótagjá Cave from its dramatic appearance in season 3 of “Game of Thrones.”

Grjótagjá Cave is a real-life location in Iceland, but it also gained fame as a filming location for HBO’s “Game of Thrones.” Situated near Lake Myvatn in northern Iceland, Grjótagjá Cave served as the backdrop for a memorable scene involving Jon Snow and Ygritte in the series.

In “Game of Thrones,” Grjótagjá Cave represents the love nest of Jon Snow, a member of the Night’s Watch, and Ygritte, a wildling woman. Their forbidden romance blossoms in the harsh and unforgiving landscape beyond the Wall, where alliances are rare and trust is even rarer. Despite being on opposite sides of the conflict between the Night’s Watch and the Free Folk, Jon and Ygritte find solace and intimacy in the secluded confines of the cave.

The cave’s natural beauty, with its rugged rock formations and tranquil hot spring, provides a stark contrast to the violence and political intrigue that dominate the world of Westeros. Here, amidst the steam rising from the thermal waters, Jon and Ygritte share tender moments and forge a deep emotional connection that transcends the boundaries of their warring factions.

However, their happiness is short-lived, as the realities of their respective loyalties soon come crashing down upon them. Their love affair becomes increasingly complicated as they are forced to confront the harsh realities of their divided world, ultimately leading to heartbreak and tragedy.

Despite its brief appearance in the series, Grjótagjá Cave remains a poignant symbol of love and defiance in the face of adversity, reminding viewers that even in the darkest of times, the human spirit can find moments of warmth and beauty.

HBO’s choice to use Grjótagjá as a location contributed to its status as a pop culture icon, immortalizing the cave in the eyes of fans around the world.

The peaceful and mysterious Grjótagjá Cave and hot springs in North Iceland. [Photo credit to Naveen Venkatesan]

Cultural Impact

Grjótagjá’s significance in Iceland extends beyond its on-screen fame.

For centuries, it was a part of local folklore and history – a sanctuary for figures like Jón Markússon, whose story adds a layer of mystique to the cave.

While volcanic activity once rendered the spring too hot for bathing, it has now cooled to a temperature often deemed suitable for soaking, reinstating its traditional use as a hot spring. However, it’s essential to note that this fluctuation isn’t guaranteed, so it’s advisable to consult locals before indulging in the hot springs of Grjótagjá during your visit.

 

A visitor at the entrance of Grjótagjá cave in North Iceland
A visitor at the entrance of Grjótagjá cave in North Iceland. [Photo credit to Yanshu Li]

Grjótagjá Cave’s Nearby Attractions

When you visit Grjótagjá Cave, you’re in a region rich with natural wonders. Just a stone’s throw away, you’ll find the striking Hverfjall Crater.

This 1 km wide tephra cone volcano offers a challenging hike that rewards you with panoramic views of the surrounding landscape.

Nearby, the Mývatn Nature Baths provide a soothing and less crowded alternative to the Blue Lagoon.

Indulge in the relaxing geothermal waters and experience the tranquility of Northern Iceland’s unique volcanic landscape.

A guest is relaxing with a beer in hand at Myvatn Nature Bath
Myvatn Nature Baths is considered the Blue Lagoon of the North.

Dimmuborgir lava formations is another gem close to Grjótagjá. Here, you’ll be greeted by a labyrinth of imposing lava rock formations, which, according to legend, are the collapsed remains of a troll city.

Exploring Dimmuborgir Lava Formations in North Iceland close to Lake Myvatn
Dimmuborgir lava formations in North Iceland. [Photo credit to MAEK]

If you’re a fan of birdwatching, head over to Lake Mývatn, where diverse bird species flock, especially during the summer months. The lake’s rich ecology makes it a haven for ornithologists and nature enthusiasts alike.

Landscape of Myvatn lake in Northern Iceland. Islet of volcanic pseudo crater is a middle.
Lake Myvatn is a beautiful place in North Iceland.

Finally, don’t miss the Krafla Volcano Area, with its vividly colored geothermal sites and the impressive Víti Crater—a geothermal crater lake with a striking, opaque blue hue.

Fresh lava field from Krafla volcanic system's newest eruption in North Iceland
New lava field in the Krafla volcano area in North Iceland. [Photo credit to Yanshu Li]

Frequently Asked Questions About Grjótagjá Cave

Before visiting the iconic Grjótagjá Cave and Hot Springs, you may have a few questions. This section provides straightforward answers to some of the most common inquiries to help you plan your visit effectively.

What are the visiting hours for Grjótagjá Cave and Hot Springs?

Grjótagjá Cave does not have official visiting hours. However, since it is located on private land, it’s advisable to respect the area and visit during daylight hours for safety and out of respect for the property owners.

Which scenes from Game of Thrones were filmed at Grjótagjá?

The intimate scene in Game of Thrones, featuring Jon Snow and Ygritte in season 3, episode 4, was filmed at Grjótagjá. The cave’s geothermal waters provided a unique and memorable backdrop for this moment in the series.

How do I get to Grjótagjá Cave when visiting Iceland?

It’s best to start your exploration in North Iceland. To reach Grjótagjá Cave from Akureyri, travelers typically embark on a scenic drive eastward along Route 1, the Ring Road. Upon reaching the junction with Route 848, they turn right and continue south towards Lake Mývatn. Continue driving south until you see signs or directions leading to Grjótagjá Cave. The cave is located near the lake, so it shouldn’t be too difficult to find once you’re in the vicinity. And please be prepared for Iceland’s variable weather conditions, especially if you’re traveling during the colder months when road conditions can be more challenging.

Serene blue hot spring water inside Grjótagjá cave in North Iceland. [Photo credit to Yanshu Li]
About the author
Yanshu
Yanshu
A journalist and photographer, Yanshu is driven by a deep passion for Iceland. She's on a mission to share her love for authentic travel experiences and exciting adventures with fellow explorers. Armed with her camera, she sets off on hikes, delving into Iceland's intricacies while mastering the art of Icelandic language whenever possible.

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