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Nautholsvik Geothermal Beach
About Nautholsvik Geothermal Beach
Nauthólsvík is Reykjavík's unique geothermal beach, offering warm swimming in the North Atlantic Ocean. Located near Reykjavík University on the Seltjarnarnes peninsula, this artificial beach features a small lagoon heated by geothermal water to approximately 15-19°C (59-66°F) during summer. The surrounding seawater remains its natural cold temperature, allowing adventurous swimmers to experience the contrast. The beach area includes a sandy beach, changing facilities, hot tubs (38-39°C), and a steam bath. During summer (mid-May to mid-August), lifeguards are on duty and facilities are fully operational. Some hardy locals continue visiting year-round for cold water swimming, which is considered healthy in Icelandic culture. The beach offers views across Faxaflói Bay to Mount Esja and provides a unique opportunity to experience Iceland's geothermal energy in an outdoor setting. Nauthólsvík demonstrates how Icelanders adapt their love of swimming pools and hot water to a coastal environment.
🐉 Legends of Nautholsvik Geothermal Beach
Nautholsvik Geothermal Beach 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.
📖 History of Nautholsvik Geothermal Beach
Nauthólsvík was developed in 2000-2001 as an artificial beach to provide Reykjavík residents with an ocean swimming option. The area was previously rocky shoreline before sand was imported and the geothermal heating system installed. The beach quickly became popular and has been expanded over the years.
✈️ Why Visit
Unique opportunity to swim in warm seawater in Iceland.
💡 Did You Know?
Hot water from geothermal sources warms the lagoon.
Key Facts
Geothermally heated ocean lagoon
Water temperature 15-19°C in summer
Golden sand imported to create beach
Hot tubs and steam bath available
Popular year-round cold water swimming location
💎 Hidden Gems
Steam Patterns
Watch how the steam patterns change with wind direction and temperature throughout the day.
On cold mornings, the steam is most dramatic, creating an otherworldly atmosphere that photographs beautifully.
Mineral Colors
Notice the vivid colors around the geothermal features — yellow sulfur, red iron oxide, and green algae.
These colors represent different minerals deposited by the hot water, creating a natural palette unique to each hot spring.
Bubbling Mud Pots
If present, the bubbling mud pots are mesmerizing to watch — each bubble is a small volcanic event.
The mud is created by acidic steam breaking down the surrounding rock, and each site has a unique bubbling rhythm.
🕐 Best Time
May to September; year-round for cold water enthusiasts
🚗 Access
Short drive or bus ride from city center
⏱ Duration
45 minutes to 1.5 hours
Frequently Asked Questions
Is it safe to touch the geothermal water?▾
Never touch geothermal water unless at a designated bathing area. Water temperatures can exceed 100°C and cause severe burns.
Can I visit geothermal areas year-round?▾
Yes, most geothermal areas are open year-round. The steam is even more dramatic in cold winter weather.
Do I need to stay on boardwalks?▾
Yes, always stay on marked paths and boardwalks. The ground near geothermal features can be thin and unstable.
📍 GPS Location
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