If you’ve ever imagined soaking in a natural river while steam rises around you against a volcanic landscape, Iceland is the place to make it real. The island sits on a geothermal hotspot — literally — with naturally heated waters scattered across its dramatic terrain. This guide maps out the best free natural pools, from a riverside thermal stretch near Reykjavik to remote fjord pools in the Westfjords. Whether you’re after a quick urban soak or a proper hike-to-reward adventure, there’s a natural option waiting.

4 related posts

Public pools in Reykjavik: close to 20 ·
Key natural spots: Nautholsvik Geothermal Beach, Secret Lagoon ·
North Iceland highlight: Mývatn Nature Baths ·
Beachfront pools: Hellulaug

Quick snapshot

1Confirmed facts
2What’s unclear
  • Exact count of free natural hot springs near Reykjavik remains debated among sources
  • Some remote pool access routes lack consistent GPS coordinates
  • Water quality testing frequency at lesser-known pools not publicly documented
3Timeline signal
  • Guðrúnarlaug reconstructed in 2009, reviving a site with over 1,000 years of history (Iceland with a View)
  • Seljavallalaug recognized as one of Iceland’s oldest swimming pools (historical) (Iceland with a View)
  • Heimaey Island pools formed following volcanic activity (Iceland with a View)
4What’s next
  • Growing popularity puts pressure on trail access and parking at popular spots
  • Interactive maps continue expanding to include more lesser-known pools
  • Summer season (May–September) remains optimal for most remote pool visits

Six key pools span Iceland’s geothermal landscape, from the capital region to the remote Westfjords, each offering distinct access challenges and temperature ranges.

Pool name Temperature Location Access
Reykjadalur 36–40°C 45 km from Reykjavik, near Hveragerði 1-hour hike each way
Seljavallalaug 20–35°C South Iceland, near Eyjafjallajökull 20-minute walk from parking
Kvika Footbath 37–39°C Seltjarnarnes, near Reykjavik Walkable or short drive
Guðrúnarlaug 38–40°C West Iceland Requires navigation to site
Reykjafjarðarlaug 32–50°C Westfjords, Arnarfjörður Remote, 40 km from Dynjandi
Varmalaug Varies Mosfellsbær, near Reykjavik Free, easily accessible

Best Natural Geothermal Pools in Iceland

Nautholsvik Geothermal Beach

On the outskirts of Reykjavik, Nautholsvik flips the script on what urban swimming looks like. This geothermal beach mixes naturally heated seawater into its lagoon, giving swimmers the rare thrill of a warm ocean dip. The setup includes a small artificial beach area where the water reaches comfortable soaking temperatures, making it one of the most distinctive public options near the capital.

Local perspective

Nautholsvik demonstrates how Reykjavik has woven geothermal energy into everyday recreation — residents swim here year-round, often regardless of weather, because the water stays naturally warm.

Secret Lagoon Fludir

In the small town of Fludir on the Golden Circle route, the Secret Lagoon (Gamla Laugin) offers what many visitors picture when they think of Icelandic hot pots. The pool sits in a natural lava-ringed setting, with steam drifting off the surface and a small geyser that bubbles nearby. Entry costs a modest fee, positioning it between free roadside springs and premium spas like the Blue Lagoon.

Seljavallalaug Pool

Seljavallalaug claims the title of one of Iceland’s oldest geothermal pools, tucked into the Evindarhólar valley southeast of Reykjavik. The stone-walled pool holds water at approximately 20–35°C, warmed by a geothermal spring above that mixes with rainwater runoff. Reaching it requires abandoning the main road and following a rough track for roughly 20 minutes on foot.

The catch

Seljavallalaug has no facilities beyond a changing room in an adjacent building. No toilets, no cafe, no lifeguard — bring everything you need and pack out what you pack in.

The pool sees most visitors between May and September, when trails dry out enough to handle vehicle traffic reliably. Outside those months, the access road often becomes impassable, and even the short walk turns muddy and treacherous.

Bottom line: For travelers wanting authentic history beneath their soak, Seljavallalaug delivers over a century of tradition in a dramatic valley setting. Those craving convenience should target summer months and arrive early to beat the crowds.

Hellulaug Pool

Hellulaug sits along Iceland’s southern coast, where geothermal springs emerge directly at the beachfront. The pool offers unobstructed views of the North Atlantic and warm water that blends naturally with the cooler ocean. Its remote location means fewer visitors and a more solitary experience compared to popular inland pools.

Natural Geothermal Pool Iceland Map

Hot Springs Iceland Map Locations

Interactive maps have transformed how travelers plan geothermal soaks in Iceland. Several travel platforms maintain detailed listings showing coordinates, temperatures, access difficulty, and seasonal conditions for over 30 documented natural pools. Maps from Iceland Dream and Iceland Travel Guide display hot spring locations across all regions, from easily reachable urban options to remote Westfjords retreats.

  • Near Reykjavik: Kvika Footbath, Varmalaug, Nautholsvik — all reachable without a full-day excursion
  • South Iceland: Reykjadalur and Seljavallalaug — the most popular day-trip targets
  • West Iceland: Guðrúnarlaug — historic pool with over 1,000 years of documented use
  • Westfjords: Reykjafjarðarlaug — remote fjord setting with multiple temperature zones

Pools Near Reykjavik

For visitors basing themselves in Reykjavik, the closest natural options cluster within an hour’s drive. Reykjadalur sits 45 minutes northeast near the town of Hveragerði, reachable via the Ring Road. The hike runs 3.5 km one way through a landscape punctuated by steam vents and mineral-stained ground, culminating in a river where visitors wade to find their preferred temperature zone.

Reykjadalur Thermal River is one of Iceland’s most scenic hot springs, with water temperatures reaching up to 40°C in the warmest pools.

— Anywhere We Roam (travel guide)

The upshot

For those short on time, Reykjadalur offers the highest reward-to-effort ratio: a manageable hike rewards you with a unique geothermal river experience that most commercial spas simply cannot replicate.

Varmalaug in Mosfellsbær provides a smaller, quieter alternative for those wanting something even closer to the city. The pool sits in a more developed setting but maintains its natural warmth and free entry.

Geothermal Pool Iceland Reykjavik

Free Hot Springs Reykjavik

Reykjavik residents enjoy nearly 20 public swimming pools throughout the city, but most are heated municipal facilities rather than true geothermal springs. The notable exception is Nautholsvik Geothermal Beach, which uses naturally warm seawater in its design. Beyond the city limits, the Kvika Geothermal Footbath in Seltjarnarnes offers a free, walkable option with water temperatures around 39°C.

  • Kvika Footbath: Free, overlooks the water near Seltjarnarnes, 37–39°C — ideal for a quick urban soak
  • Varmalaug: Free natural pool in Mosfellsbær, a 20-minute drive from central Reykjavik
  • Nautholsvik: Geothermal beach lagoon with heated seawater, free public access

Public Pools Overview

The municipal pool system in Reykjavik operates on a user-pays model, with modest entry fees that cover maintenance and staffing. Laugardalslaug, the largest facility, features multiple hot tubs reaching 44°C alongside standard swimming pools. These facilities use geothermal heating rather than drawing directly from hot springs, which means cleaner infrastructure but a different experience from natural pools.

Borgarnes, a town roughly 60 km north of Reykjavik, also maintains a public pool serving travelers exploring the western Snæfellsnes Peninsula. Like Reykjavik’s municipal pools, it offers reliable facilities and consistent temperatures — a practical option for road-trippers rather than adventure-seekers.

Bottom line: Reykjavik proper offers convenience and infrastructure, but true natural geothermal experiences require venturing beyond the city center. The Kvika Footbath provides the best free urban option, while Reykjadalur rewards those willing to drive 45 minutes and hike for an hour.

Free Hot Springs Iceland Reykjavik

Accessible Free Spots

The distinction between “free” and “paid” in Iceland’s hot spring landscape matters more than in many destinations. Free natural pools typically require some combination of driving on rough roads, hiking to remote locations, and tolerating basic or non-existent facilities. In exchange, visitors receive unfiltered access to geothermal phenomena in spectacular settings.

  • Reykjadalur: Free entry, parking fee may apply, 45-minute drive plus 1-hour hike
  • Seljavallalaug: Free entry, 2-hour drive from Reykjavik plus 20-minute walk
  • Kvika Footbath: Free entry, walkable from Reykjavik with optional short drive
  • Varmalaug: Free entry, 20-minute drive from Reykjavik

Public vs Private

Commercial spas like the Blue Lagoon and Mývatn Nature Baths charge premium entry fees that cover premium amenities: changing rooms, showers, lockers, restaurants, and often a more controlled bathing environment. Natural free pools offer the opposite trade-off — raw settings, minimal infrastructure, and zero entrance charges.

Why this matters

The choice between public and private comes down to what you value most. A commercial spa guarantees comfort and convenience. A free natural pool guarantees authenticity and solitude — assuming you’re willing to work for it.

For budget travelers, the free options deliver genuine Icelandic experiences that no paid facility can match. Guðrúnarlaug in West Iceland, for instance, sits beside a waterfall with a reconstructed Viking hut nearby — a setting no ticket price can replicate.

Iceland Swimming Pool Etiquette

Shower Rules

Iceland’s approach to hygiene before bathing ranks among the strictest in the world. At virtually every pool — public, private, or natural — showering naked without swimwear is mandatory before entry. This applies even if you plan only a brief soak. The rule isn’t suggestions or cultural preference; it’s enforced policy at managed facilities and universally expected at natural pools.

  • Remove all clothing and swimwear before entering the shower area
  • Wash thoroughly with soap — rinse alone typically does not satisfy the requirement
  • Re-enter the pool area only after showering completely
  • At natural pools without facilities, the same principle applies: clean up before entering the water

General Behavior

Icelandic pool culture emphasizes respect for other bathers and for the facilities themselves. Running is generally discouraged around pool areas. Children should be supervised closely, and infants are typically not permitted in hot tubs. Silence isn’t mandatory, but keeping noise at conversational levels shows consideration for those seeking relaxation.

At natural geothermal pools, additional responsibilities fall to visitors. Pack out all trash, avoid using soaps or shampoos in the water (which pollutes geothermal systems), and stick to marked trails to protect sensitive volcanic terrain. The same respect for the environment that makes Iceland’s landscapes extraordinary is what keeps them that way.

The trade-off

These rules might feel intrusive to first-time visitors accustomed to more relaxed pool cultures. But they exist for good reason: Iceland’s water resources are finite and culturally sacred. Following the etiquette isn’t just politeness — it’s participation in a social contract that keeps these spaces accessible and clean.

Bottom line: Iceland’s pool rules exist because geothermal bathing is a shared civic tradition, not a private amenity. Strip shower before entry, leave no trace at natural pools, and treat other bathers as you’d wish to be treated — three expectations that cover 95% of what you need to know.

Free vs Paid Natural Pools Comparison

Twelve options across Iceland illustrate how free and paid experiences diverge on key factors.

Pool Type Entry Temperature Access Facilities
Reykjadalur Geothermal river Free (parking fee) 36–40°C 1-hour hike Cafe, toilets at parking
Seljavallalaug Natural pool Free 20–35°C 20-minute walk Changing room only
Kvika Footbath Footbath Free 37–39°C Walkable Basic
Guðrúnarlaug Natural pool Free (donation) 38–40°C Remote drive Minimal
Reykjafjarðarlaug Natural + concrete Free (donation) 32–50°C Very remote Basic
Varmalaug Natural pool Free Varies Easy drive Minimal
Nautholsvik Geothermal beach Free Warm seawater Urban Good
Secret Lagoon Natural pool Paid 38–44°C Easy drive Full facilities
Mývatn Nature Baths Premium pool Paid 37–40°C Remote drive Full facilities
Laugardalslaug Municipal pool Paid Up to 44°C Urban Full facilities
Landmannalaugar Highland pool Free Varies Hiking required Campground nearby
Blue Lagoon Premium spa Premium paid 37–40°C Easy drive Luxury facilities

The pattern holds across all twelve entries: free pools demand more effort in access and offer less infrastructure, while paid options trade higher costs for convenience and comfort. The sweet spot for most travelers lies in the middle tier — spots like Reykjadalur and Seljavallalaug offer genuine natural geothermal experiences at no charge, provided you’re willing to hike.

Bottom line: Free doesn’t mean inferior — it means different. Reykjadalur delivers a geothermal river experience that no paid spa can replicate. But if you want guaranteed clean facilities, lockers, and a cafe, budget for a commercial option alongside your free adventures.

How to Visit Reykjadalur: Step-by-Step

Reaching Iceland’s most popular free natural hot spring requires planning around distance, weather, and the actual hike — three factors that determine whether your visit succeeds or fizzles.

  1. Drive from Reykjavik — Head northeast on Route 1 (Ring Road) for approximately 45 km, about a 45-minute drive to the town of Hveragerði. Follow signs to the Reykjadalur parking area on the north side of town.
  2. Park and prepare — The parking lot includes a small cafe and free public toilets. Use these facilities before starting the hike. Pay any parking fee if applicable.
  3. Begin the hike — Follow the marked trail from the parking area. The path runs 3.5 km one way through a volcanic landscape with visible steam vents and geothermal features. Expect roughly one hour of walking at moderate pace.
  4. Find your spot — The trail ends at the Reykjadalur thermal river. Water temperature varies from approximately 36°C in cooler sections to 40°C in warmer spots. Wooden platforms provide changing areas. Wade upstream or downstream to find your preferred warmth.
  5. Soak and enjoy — Spend as long as comfortable. Remember to shower without swimwear before entering the water if facilities at the parking area were missed.
  6. Return — Follow the same trail back to the parking area. The hike back typically takes 45 minutes to an hour depending on pace and energy level.
What to watch

Weather in Iceland can shift rapidly, even in summer. Start the hike early enough to complete it in daylight, and check conditions before departing. The trail becomes treacherous when wet and offers no shelter once exposed on the hillside.

Clarity on Iceland’s Natural Pools

Confirmed

  • Reykjavik has nearly 20 municipal swimming pools
  • Reykjadalur sits 45 km from Reykjavik with water at 36–40°C
  • Seljavallalaug has operated for over a century
  • Guðrúnarlaug was reconstructed in 2009
  • Kvika Footbath maintains temperatures around 39°C
  • Most natural pools see peak visitation May–September

Unconfirmed

  • Total count of free natural hot springs across Iceland remains disputed
  • Water quality testing frequency at remote pools not publicly documented
  • Some access road conditions vary seasonally without official updates
  • Long-term impact of increased visitor traffic on pool ecosystems unclear

What Travelers Say

Reykjadalur Hot Spring River is hands down my favorite natural hot spring in Iceland. I mean, have you ever seen a geothermal river before?

— Travel Blogger, Well and Good Travel

Seljavellir Pool, nestled in the scenic Evindarhólar region, is one of Iceland’s oldest swimming pools.

— Soak Destinations (travel guide)

The Reykjadalur Thermal River is one of Iceland’s most scenic hot springs.

— Anywhere We Roam (travel writer)

The consensus among travel writers who have visited both natural and commercial pools tilts heavily toward the natural options when authenticity ranks higher than convenience. Guides consistently praise Reykjadalur for its unique river format, Seljavallalaug for its historical significance, and Guðrúnarlaug for its dramatic setting — but all note that these rewards require effort to access.

Summary

Iceland’s natural geothermal pools represent one of the country’s most distinctive resources — a gift of volcanic geology that residents have utilized for centuries. For visitors, the choice narrows to three factors: how much time you have, how much effort you’re willing to invest, and whether infrastructure or authenticity matters more to you.

Those based in Reykjavik have free options within an hour’s drive — most notably Reykjadalur’s thermal river and Kvika’s footbath — that deliver genuine geothermal experiences without the crowds at commercial spas. Travelers with vehicles and time can access remoter pools like Seljavallalaug and Guðrúnarlaug, where the reward-to-effort ratio climbs substantially.

For visitors deciding between free and paid options, the calculus is straightforward: budget travelers who hike gain access to experiences that no commercial spa can replicate. Those prioritizing comfort and guaranteed facilities should allocate spending accordingly. Visitors who master the shower-before-entry rule and pack out their trash will find Iceland’s geothermal landscape rewards them with soaking experiences that simply cannot be found elsewhere on earth.

Related reading: Things to Do in Madrid: Top Attractions · River Lee Hotel Cork: Directions, Parking, Reviews

Additional sources

wellandgoodtravel.com, anywhereweroam.com, findinghotsprings.com, iceland-dream.com

While mapping out Reykjavik’s free natural hot springs, travelers wisely consult Blue Lagoon busy times to sidestep crowds at this geothermal icon.

Don't miss these

Frequently asked questions

How safe are natural geothermal pools in Iceland?

Natural pools carry risks that managed facilities do not. Water temperatures can exceed safe limits in some spots, volcanic gases accumulate in low-lying areas, and terrain around geothermal features may be unstable. Stick to established access routes, check conditions before entering, and never soak alone in remote locations.

What temperature are Iceland hot springs?

Temperatures vary widely across Iceland’s natural pools. Most natural pools range from 32°C to 40°C, with some geothermal rivers offering cooler and warmer zones depending on where you wade. Reykjadalur’s river reaches up to 40°C in the warmest sections.

Do I need a car to reach natural pools?

Yes, in most cases. Iceland’s natural geothermal pools are scattered across the island and rarely accessible by public transportation. Only urban options like Kvika Footbath and Nautholsvik can be reached without a vehicle, and even those benefit from a car for the return trip.

Are geothermal pools open year-round?

Most natural pools remain accessible year-round, but access roads may become impassable during winter months. Summer (May–September) offers the most reliable access for remote pools like Seljavallalaug. Always check current conditions before planning a winter visit.

What to pack for Iceland hot springs?

Bring a towel (unless facilities provide one), water shoes for rocky or muddy terrain, swimwear, and a complete change of clothes. At natural pools without facilities, pack out everything you bring in. A small daypack, water bottle, and rain layer complete the essentials.

Can families visit geothermal pools?

Families with children can enjoy many natural pools, but hot tub temperatures may be too warm for young children. Always check water temperature before allowing children to enter, and supervise closely around uneven terrain. Commercial facilities like Nautholsvik offer more controlled environments for families.

How crowded are Reykjavik pools?

Municipal pools in Reykjavik see steady traffic but rarely feel overcrowded. Natural pools like Reykjadalur can become congested during peak summer afternoons when cruise ships dock and tour groups arrive. Arriving early (before 9 AM) or later in the evening offers the best chance of solitude.

What makes Mývatn Nature Baths unique compared to other natural pools?

Mývatn Nature Baths sit within a volcanic landscape shaped by an eruption over 2,000 years ago, with birdlife-rich wetlands surrounding the pool area. The mineral composition of the water differs from southern pools, and the northern location offers different seasonal light conditions that appeal to photographers and nature enthusiasts.