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Hot Springs Brief

Find hot springs worth the drive.

Water temperatures, fees, trail notes and maps for 814 hot springs, each with the date we last checked it.

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Steam rising off a natural rock pool beside a river at dawn

Pick your kind of soak

Where in the world

All 12 countries
  1. North America

    United StatesCanadaMexicoCosta Rica

    504 springs

  2. Europe

    ItalyIcelandHungaryTurkey

    202 springs

  3. Asia

    Japan

    81 springs

  4. Australia & Oceania

    New Zealand

    27 springs

Checked, dated, and honest about gaps

Directory sites copy each other's mistakes. We research every listing from primary sources and leave a field blank rather than guess.

How we verify
  • A date on every listing

    So you know how fresh the fees and hours are.

  • Pins on the pools

    Coordinates point at the water or the trailhead, not the nearest town.

  • Closures flagged

    Fire damage, gated roads and private-land bans are on the page.

  • °F or °C, your call

    Switch units in the header and every page follows.

Hot Springs Brief is a guide to 814 hot springs in 12 countries, from free riverside pools in the Idaho backcountry to Japanese onsen towns, Icelandic geothermal lagoons and the thermal baths of Budapest. Every listing is written from primary sources, such as the operator, the national forest or the park service, and shows the date we last checked it. The aim is simple: when you arrive, the spring should be open, the water should be the temperature we said, and you should already know whether you need a swimsuit, cash or a four-wheel-drive.

Finding hot springs near you

The quickest way to find hot springs near me is the hot springs map: every pin sits on the pools themselves, or on the trailhead for springs you have to hike to, never on the nearest town. If you are starting from a city, the "Hot springs near" links above list everything within a realistic drive, with the time on the road and the length of the walk. You can also use search at the top of any page to jump straight to a spring, a town or a national forest.

Every listing answers the same practical questions: how hot the water is, what it costs, the opening hours, how far you walk from the car, whether the road is paved, whether dogs and children are welcome, the clothing rule, and where to camp or stay nearby. Seasonal closures, fire damage and access bans are flagged at the top of the page.

Natural hot springs, resorts, onsen and thermal baths

Natural and wild hot springs (214 in this guide) are undeveloped pools where hot water meets a creek, a river or open desert. Many are free hot springs on public land, with no staff and no fee, and some take a long hike to reach. They are the most rewarding to find and the most likely to change: a spring flood can move a riverside pool, and a wildfire can close the road for a season.

Hot spring resorts and spas (396 listings) pipe the water into built pools, with changing rooms, day passes and often lodging. Public pools and thermal baths(204 listings) are the municipal pools, bathhouses and state parks, such as Iceland's town pools and Hungary's historic baths. In Japan, an onsen is a bath fed by a hot spring and defined in law by its temperature or mineral content; you bathe nude, usually in baths separated by gender.

Clothing rules vary more than people expect. 61 springs in this guide are clothing optional hot springs, most of them wild pools in the western US. 466 are marked family friendly hot springs, meaning swimsuits are required and the pools and access suit children. We never mark a clothing optional place as family friendly.

Where the best hot springs are

The western United States is one of the richest hot spring regions in the world. We list 464hot springs in the US, with the most in California (90),Idaho (80), Colorado (51) andOregon (41). Idaho is the place for free wild hot springs along forest roads and rivers. Colorado and California have the best-known hot spring resorts, and thenatural hot springs in Colorado range from roadside pools to backcountry soaks above 10,000 feet. Oregon, Nevada and New Mexico have desert and high-plateau springs with very few people.

Beyond the US, Japan (81 listings) has historic onsen towns, mountain inns and free riverside baths. Iceland hot springs (52) range from famous lagoons to warm rivers you hike to. Italy (60) and Hungary(29) have the great spa towns of Europe, including the historic Budapest thermal baths, and New Zealand(27) mixes Rotorua's commercial pools with wild streams and beaches where you dig your own pool. Browseall regions for Canada, Mexico, Turkey, Greece, Austria and more.

Before you go: safety, etiquette and timing

Are hot springs safe? Most are, if you follow a few rules. Test the water with your hand before you get in, because source water can be hot enough to scald. Keep your head above water in natural pools, since warm untreated water can carry the Naegleria fowleri amoeba. Limit long soaks, drink water, skip the alcohol, and take care on wet rock and travertine. If you are pregnant or have a heart condition, talk to a doctor first.

Hot spring etiquette is mostly common sense. At wild springs, pack out everything you bring, leave soap and glass at home, keep voices down and share the pool. At onsen, wash and rinse at the shower stations before you enter, keep your towel out of the water, and check the tattoo policy, which every Japanese listing here states. At resorts, follow posted soak limits and quiet hours.

The best time to visit hot springs is usually autumn through early spring, when cold air makes hot water a pleasure and summer crowds have gone. Riverside pools in the mountains can sit under snowmelt from about May to July, and some high springs are only reachable in late summer once the snow clears. Weekday mornings are the quietest time at popular free springs.

What to bring to a hot spring: plenty of drinking water, sandals with grip, a towel, a warm layer for afterwards, a headlamp if you will walk out after dark, a trash bag, and cash, as some small springs do not take cards. For remote springs, carry a map, because many have no phone signal. Then check the listing's date, confirm with the operator, and go and enjoy the water.

Hot springs FAQ

What are hot springs and how are they formed?
How do I find hot springs near me?
Where are the best hot springs in the US?
Are there free hot springs?
What is an onsen, and how is it different from a thermal bath?
Are hot springs good for you?
Are natural hot springs safe to soak in?
Do I need a swimsuit? What about clothing optional hot springs?
Which hot springs are family friendly?
When is the best time to visit hot springs?
How do you check the listings?

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