The 7 Best Hot Springs in the World
Soaking in a natural hot spring feels like one of travel's oldest rewards. Long before five-star spas and silicone pool liners, people gathered around steaming pools for warmth, healing, and community. The minerals in the water soothe sore muscles. The steam clears tight sinuses. The setting, whether alpine peaks or tropical jungle, turns a simple bath into something memorable. These are not just swimming holes. They are places where geology, history, and health and wellness meet in a single warm embrace.
The world's best hot springs for actual swimming share a few qualities. The water must be warm but not scalding. Access must be public or at least reasonable. The surroundings should stop you mid-breath. Some spots, like Blue Lagoon in Iceland, became famous through sheer photogenic power. Others, like Beppu in Japan or Saturnia in Italy, have been drawing travelers for over 2,000 years. From the milky-blue pools of the Reykjanes Peninsula to the travertine terraces of Tuscany, these six destinations deliver warm-water magic worth booking a flight for.
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Peninsula Hot Springs, Australia
Peninsula Hot Springs sits on Victoria's Mornington Peninsula, about 90 minutes south of Melbourne. The geothermal water rises from 637 meters underground, rich in boron, magnesium, potassium, and sodium. The property features over 70 thermal pools, private baths, saunas, reflexology walks, and the adults-only Spa Dreaming Centre for guests 16 and older. Temperatures range from a bracing 12-degree polar plunge to the hot 42-degree hilltop pool with panoramic coastal views.
Day admission packages start around 70 Australian dollars per hour, with premium options including clay rituals, massages, and picnic hampers. The glamping tents offer overnight stays with heated floors, private showers, and included bathing across multiple days. Early morning and weekday visits deliver the most peaceful soaks. The on-site restaurant serves seasonal produce from the property's own food bowl.
How far is Peninsula Hot Springs from Melbourne? Peninsula Hot Springs sits about 90 minutes from Melbourne CBD on Victoria's Mornington Peninsula, reachable by rental car, rideshare, or organized day tour with hotel pickup included.
Are children allowed at Peninsula Hot Springs? Children are allowed at Peninsula Hot Springs in the family-friendly Bath House bathing area, but the adults-only Spa Dreaming Centre and Hilltop Pool restrict entry to guests 16 years and older.
How long should you spend at Peninsula Hot Springs? Plan to spend at least 4 hours at Peninsula Hot Springs to sample a range of the 70 thermal pools, wellness experiences, and dining options without feeling rushed between soaks.
Blue Lagoon, Iceland
The Blue Lagoon in Iceland sits on the volcanic Reykjanes Peninsula, roughly 15 minutes from Keflavík International Airport and 50 minutes from Reykjavík. The milky-blue water stays between 37 and 39 degrees Celsius year-round, heated deep underground and rich in silica, algae, and minerals. The lagoon is part natural and part engineered, with runoff from the nearby Svartsengi geothermal plant flowing into a lava-field basin. National Geographic named it one of the 25 Wonders of the World.
Book tickets in advance, as daily capacity fills quickly. Comfort admission starts around ISK 11,990, with higher tiers adding robes, drinks, and spa treatments. The site features steam rooms, saunas, an in-water bar, silica mud masks, and the Michelin-starred Moss Restaurant. Many travelers build a visit around their flight, stopping on arrival or just before departure.
What's the best time to visit Blue Lagoon in Iceland? The best time to visit Blue Lagoon in Iceland is early morning, late evening, or night during winter, when the crowds thin out and you might catch the Northern Lights overhead.
Do you need to book Blue Lagoon tickets in advance? Yes, Blue Lagoon tickets often sell out days or weeks ahead, especially during summer and holidays, so booking online before your trip is strongly recommended.
Is the Blue Lagoon water safe for swimming? The Blue Lagoon water is tested regularly and safe for swimming, though visitors should avoid getting the water in their eyes and should rinse hair thoroughly to prevent silica residue.
Cascate del Mulino, Saturnia, Italy
Tucked into southern Tuscany's Maremma region, the Cascate del Mulino are free thermal waterfalls that cascade into natural pools beside an old mill. The sulfur-rich water maintains a steady 37.5 degrees Celsius year-round, fed by volcanic activity beneath extinct Mount Amiata. The pools stay open 24 hours a day, 7 days a week, with no entry fee. This is not the nearby luxury Terme di Saturnia resort, which is a separate paid spa complex a few kilometers up the road.
While hiking through Italy might sound fun, a car is essential, as public transit to Saturnia is limited. Rome sits about 180 kilometers away, Florence roughly 200 kilometers. Spring and autumn offer the best weather, while winter rewards bathers with steam rising dramatically into cold air. Bring water shoes, towels, and patience for crowds, especially on weekends and full-moon nights. The grey mud along pool edges doubles as a natural skincare treatment.
Are the Saturnia hot springs really free? Yes, the Saturnia hot springs at Cascate del Mulino are completely free and open around the clock, with no ticket or reservation required at any time of year.
What is the water temperature at Saturnia hot springs? The water temperature at Saturnia hot springs stays at a steady 37.5 degrees Celsius, roughly 99.5 degrees Fahrenheit, all year long regardless of outside weather conditions.
Do the Saturnia hot springs smell bad? The Saturnia hot springs do carry a mild sulfur smell, similar to eggs, because of the mineral content, though most visitors find it fades quickly after a shower.
Beppu Onsen, Japan
Beppu sits on Kyushu's east coast in Oita Prefecture and pumps more hot spring water than any other town in Japan. The city's signature attraction is the Seven Hells, or Jigoku, a circuit of geothermal ponds so hot they're for viewing only. Umi Jigoku glows cobalt blue at 98 degrees Celsius. Chinoike Jigoku runs blood red from iron-rich mud. Tatsumaki Jigoku erupts as a geyser every 30 to 40 minutes. Beyond the Hells, dozens of bathhouses let visitors soak in mineral, mud, steam, and sand baths.
The Common Admission Pass costs 2,400 yen and covers all seven Hells. Plan 2 to 3 hours for the full circuit. The Kannawa district makes the best base, with traditional ryokans and steam rising from manhole covers. Try jigoku-mushi steamed eggs, pudding cooked in hot spring vapor, and onsen-hopping across tiny neighborhood bathhouses that cost as little as 100 yen.
Can you bathe in the Beppu Hells? You cannot bathe in the Beppu Hells themselves because the water reaches nearly 100 degrees Celsius, but most Hells offer footbaths and nearby public bathhouses for actual soaking.
How long does it take to tour the Beppu Hells? Touring the Beppu Hells takes 2.5 to 3 hours at a relaxed pace, with 5 pools clustered in Kannawa district and 2 more a short bus ride away in Shibaseki.
What should you eat in Beppu? In Beppu, try jigoku-mushi hell-steamed eggs and vegetables, jigoku pudding with a red wine flavor, and reimen cold buckwheat noodles served in soy-based broth at local restaurants.
Beyond the hot springs, visit some of Japan's izakaya bars.
Pamukkale, Turkiye
Pamukkale means "cotton castle" in Turkish, and one look at the brilliant white travertine terraces explains the name. The formation stretches 2,700 meters long and 160 meters high in Denizli Province. Seventeen hot springs feed the cascading calcium pools at temperatures up to 37 degrees Celsius. The site has been drawing bathers since Roman times, when Hierapolis was built atop the plateau as a thermal spa city. UNESCO added Pamukkale to its World Heritage list in 1988.
General admission runs 30 Euros, covering both the travertines and the Hierapolis ruins. Visitors must walk barefoot on the terraces to protect the delicate calcium deposits. Only designated pools remain open for bathing, and the nearby Cleopatra's Pool offers swimming among submerged Roman columns for an extra fee. Go at sunrise or late afternoon for the best light and thinnest crowds.
Can you swim in Pamukkale's thermal pools? You can swim in designated areas of Pamukkale's thermal pools and in the famous Cleopatra's Pool at Hierapolis, though most terraces are protected and closed to full bathing.
How do you get to Pamukkale from Istanbul? To get to Pamukkale from Istanbul, fly one hour to Denizli Cardak Airport and take a bus or taxi, or travel overland by bus in roughly 10 hours.
What should you pack for Pamukkale? For Pamukkale, pack a swimsuit, a sarong, sunglasses for the intense glare off white limestone, a small bag for shoes, and water shoes for the occasional sharp travertine edge.
Banff Upper Hot Springs, Canada
Banff Upper Hot Springs sit at 1,585 meters on Sulphur Mountain, making them Canada's highest soakable thermal pool. The water stays between 37 and 40 degrees Celsius, and the views stretch across Mount Rundle and Cascade Mountain. The site has drawn visitors since 1886, when the springs helped inspire the creation of Canada's first national park. Today's historic bathhouse, a 1930s federal heritage building, features interpretive exhibits on geology and Indigenous history.
Adult admission runs about 17.50 Canadian dollars, with family rates available. Parks Canada doesn't take reservations, so arrive early on summer weekends. The Roam Transit Route 1 bus runs every 20 minutes from downtown Banff, and parking fills by mid-morning between May 15 and October 12. Winter visits deliver the most dramatic experience, with steam rising against snow-capped peaks. Swimsuit and towel rentals are available on site.
How much does Banff Upper Hot Springs cost? Banff Upper Hot Springs costs 17.50 Canadian dollars for adults, 15.25 for seniors and youth, and free for children under 3, with a family rate of 56.75 for two adults and two kids.
Is Banff Upper Hot Springs open year-round? Yes, Banff Upper Hot Springs is open year-round from 10 a.m. to 10 p.m., though hours shift slightly for maintenance closures, so check the Parks Canada website before visiting.
Can you walk to Banff Upper Hot Springs from town? You can walk or bike 3.6 kilometers uphill from downtown Banff to the Banff Upper Hot Springs on Mountain Avenue, though most visitors take the Roam Route 1 bus or drive.
Check out these winter things to do in Montreal to balance the heat from these hot springs.
Glenwood Hot Springs, Colorado, USA
Glenwood Hot Springs Resort in this Colorado small town claims the world's largest hot springs pool, a two-city-block expanse fed by the Yampah Spring at 3.5 million gallons daily. The resort opened in 1888 and sits in Glenwood Canyon between Aspen and Vail. The Grand Pool runs a comfortable 90 to 93 degrees Fahrenheit for swimming, while the adjacent Therapy Pool stays at 104 degrees for intensive soaking. The newer Yampah Mineral Baths feature 5 pools ranging from a 52-degree cold plunge to 104-degree cascades.
Admission varies by age, season, and time of day. The resort includes the 107-room Lodge, the 16-room Hotel 1888, a gift shop, full-service athletic club, and poolside grill. Summer brings the Sopris Splash Zone with tube rides, waterfalls, and a splash pad for kids. Winter pairs skiing at Sunlight Mountain with evening soaks. Ute tribes named the source "Yampah," meaning Big Medicine, for its therapeutic mineral content.
How big is the Glenwood Hot Springs pool? The Glenwood Hot Springs Grand Pool stretches over 2 city blocks long, making it the world's largest hot springs pool, with separate lap lanes, a diving area, and plenty of room to float.
Is Glenwood Hot Springs open year-round? Yes, Glenwood Hot Springs Resort is open year-round from 9 a.m. to 9 p.m., rain, snow, or shine, with occasional maintenance closures posted in advance on the resort website.
What's the temperature at Glenwood Hot Springs? The Glenwood Hot Springs Grand Pool runs 90 to 93 degrees Fahrenheit for swimming, while the Therapy Pool stays at 104 degrees, and the Yampah Mineral Baths range from 52 to 104.
Plan Your Next Hot Springs Adventure with Miimu
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