Why El Salvador Has So Many Hot Springs
El Salvador sits on the Central American volcanic arc, and you can feel it. The same heat that built Santa Ana, Izalco and San Miguel volcanoes warms groundwater all over the country, and in a few places it comes to the surface as steam, boiling mud and hot springs. The Salvadoran word for it is aguas termales, or simply termales.
Nowhere is this more obvious than Ahuachapán. The city is known as la ciudad de los ausoles — "the city of the steam vents" — and the geothermal field on its edge does more than fill swimming pools. It also feeds the Ahuachapán geothermal power plant operated by LaGeo. Geothermal energy makes up a big part of El Salvador's power mix — Diario El Salvador has reported it at 23.5% — so the steam you see beside the pools is also helping keep the country's lights on. (We cover the Bitcoin side of that story in our geothermal Bitcoin mining explainer.)
For travelers, that means a hot-springs day fits neatly into a trip that's already heading west: Ahuachapán is the last stop on the Ruta de las Flores, after Juayúa, Apaneca and Concepción de Ataco.
The Best Hot Springs in El Salvador
The first three are on the same thermal road outside Ahuachapán, close enough to visit two in one day. The fourth is a free geothermal field nearby, the fifth is a natural thermal waterfall 20 minutes from Atiquizaya, and the sixth is the closest option to the capital.
Termales de Santa Teresa
El Salvador's best-known hot springs. El Salvador's official tourism site describes it as a hotel and natural spa with 30 thermal pools and 4 restaurants, massages and kaolin-clay treatments. The property sits beside the Santa Teresa fumarole, which the official site calls the largest in Central America, so you soak with steam rising from the hillside around you.
Termales de Alicante
The quieter, greener neighbor. Natural hot springs set among hiking trails and lush vegetation, with a small natural waterfall you can walk to after a soak. Its operator, Grupo Alicante, also offers mud baths and bamboo trails. A September 2026 hot-springs directory lists 14 pools here.
Termales La Montaña
A more resort-style option in the same thermal zone. Local press lists it as a roomy choice for families and weekend getaways; directory listings describe volcanic pools, a thermal circuit, sauna, spa treatments and hotel suites.
Los Ausoles
Not a place to swim, but the reason all the pools above are hot. Steam vents (fumarolas) and bubbling mud cover the ground in an active geothermal field spread over roughly 20 km². Ahuachapán is nicknamed "la ciudad de los ausoles" because of them. A visit takes 30–60 minutes.
Salto de Malacatiupán
The wild card. El Salvador's official tourism site calls it the only waterfall system in the country with natural hot springs. It sits where the Agua Caliente and San Antonio rivers meet, with three waterfalls of about 12 meters each and a short hike down to turquoise pools. Locals say a rock between the second and third falls looks like a monkey's face.
Termos del Río
The closest thermal option to the capital: a family water park with slides, a wave pool and a canopy line alongside its warm pools. It's a fun day out with kids, not a quiet spa.
Santa Teresa vs. Alicante vs. La Montaña: which one?
- Pick Santa Teresa if you want the full experience — lots of pools at different temperatures, restaurants, massages and clay treatments, the giant fumarole as a backdrop, and the option to sleep on site.
- Pick Alicante if you'd rather have greenery, trails and a smaller crowd. It's on the same road, so many visitors do Alicante first and finish the day at Santa Teresa.
- Pick La Montaña if you want a resort feel — a thermal circuit, sauna and spa — and are thinking about a weekend stay rather than a few hours.
We haven't listed entry prices for these three because we couldn't confirm current 2026 rates from the operators themselves. Rates change with weekends, holidays and day-versus-evening passes, so check the official sites or call before you go.
Malacatiupán: the hot-water waterfall
If you've already done the resorts, Salto de Malacatiupán is the one that feels like a discovery. Hot water from the Agua Caliente river meets the cooler San Antonio river, so the pools under the three falls range from warm to cool depending on where you sit. It's a natural site, not a resort: expect a short, sometimes muddy hike, uneven rocks and few facilities. Go in daylight, wear shoes with grip, and consider a local guide from Atiquizaya. After heavy rain, rivers rise fast — don't go in if the water is high or brown. Our waterfalls guide has more falls to add to a western route.
More Aguas Termales Around the Country
Not everything is in Ahuachapán. These are smaller or more local, and worth it if you're already in the area:
Natural rural pools — quieter and more rustic than the Ahuachapán resorts.
A little-known, low-key spot in the east.
A private villa rental listed by El Salvador's official tourism site — good for groups.
A northern town literally named "hot water"; local operators run thermal-bath day trips in the area.
If you're heading to Suchitoto anyway, ask locally about the rural pools; for the far north, our national parks guide covers Chalatenango's cooler mountain side.
How to Get There
No car: the Buses Alegres trip on Sunday, October 25
The cheapest organized way to the hot springs this month is ISTU's Buses Alegres. On Sunday, October 25, 2026, one of the two routes goes to Termales de Santa Teresa + Ataco for $10 in transport — a soak in the morning, then the murals, cafés and crafts of Ataco before heading back.
- Departure: 6:30 a.m. from the Parque Infantil de Diversiones in San Salvador. Parking there is $1 per vehicle.
- Reservations: 7517-9169, Monday to Friday, 7:30 a.m.–3:30 p.m. (in Spanish — ask your hotel to call if you need help).
- Not included: entry to the hot springs, food and spa extras. Bring cash.
Our day trips from San Salvador guide lists the rest of the Buses Alegres calendar.
By car, tour or tuk-tuk
- By car: take the highway west toward Sonsonate and up the Ruta de las Flores, or go via Santa Ana. Santa Teresa is roughly 2 km from central Ahuachapán, on the road toward Ataco. Read our rental car guide first.
- Guided tours: plenty of operators run Ruta de las Flores day tours from San Salvador, and some add a hot-springs stop. Ask for it when you book.
- From Ahuachapán: tuk-tuks wait in the center and can run you out to the thermal road in a few minutes.
- Termos del Río: it's right off the San Salvador–Santa Ana highway at km 39½, about 500 m down a signposted paved road.
- • Start cool, go hot. Most resorts have pools at different temperatures — work up slowly and drink water.
- • Pregnant, or have heart problems or high blood pressure? Check with your doctor before soaking in very hot water.
- • Take off silver jewelry. Sulfur-rich water can tarnish it.
- • Bring proper swimwear, a towel, sandals and a change of clothes.
- • At Los Ausoles, wear closed shoes and keep your distance from vents and soft ground.
- • Go on a weekday if you can — weekends and holidays are busy with local families.
When to Go
Hot springs work all year, but the timing changes the experience. Ahuachapán and the Ruta de las Flores sit high enough for cool evenings, especially from November to February, which is exactly when a warm pool feels best. October is the end of the rainy season: mornings are usually the clearest, and afternoon storms are common — fine for a soak, less fine for the hike down to Malacatiupán. See our best time to visit guide and our November travel guide for what else is on.
A Sample Hot Springs Weekend
Day 1: Ruta de las Flores
Drive west in the morning, stop for lunch at the Juayúa weekend food fair, then coffee and murals in Concepción de Ataco. Spend the night in Ataco or Ahuachapán.
Day 2: steam, soak, waterfall
Early visit to Los Ausoles while it's cool and the steam is easy to see. Then the trails and pools at Alicante, lunch, and a long afternoon soak at Santa Teresa. With extra time, swap one of the resorts for the Malacatiupán falls near Atiquizaya. For the full country, link this into one of our 7, 10 and 14-day itineraries.
En Español: Aguas Termales en El Salvador
Las mejores aguas termales de El Salvador están en Ahuachapán, al final de la Ruta de las Flores: Termales de Santa Teresa (hotel y spa natural con 30 piscinas termales y 4 restaurantes), Termales de Alicante (senderos, baños de lodo y una pequeña cascada) y Termales La Montaña. Muy cerca están Los Ausoles, un campo geotérmico de entrada libre que se visita pero donde no se puede bañar, y el Salto de Malacatiupán en Atiquizaya, el único sistema de cascadas del país con aguas termales naturales. Cerca de la capital, Termos del Río (km 39½, Ciudad Arce) cobra $5 la entrada regular de adulto. El domingo 25 de octubre, los Buses Alegres del ISTU viajan a Termales de Santa Teresa y Ataco por $10; salen a las 6:30 a. m. del Parque Infantil de Diversiones y se reserva al 7517-9169. ¿Querés armar tu ruta? Preguntale al asistente de ia.sv.
The Bottom Line
If you only do one, make it Termales de Santa Teresa — it's the most complete hot-springs experience in El Salvador. Add Los Ausoles to see where the heat comes from, choose Alicante for a calmer soak, and save Malacatiupán for the adventurous day. Best of all, they all fit into a Ruta de las Flores trip you were probably planning anyway.
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Ask the ia.sv AI assistantSources: El Salvador Travel — Health & wellness (Termales de Santa Teresa); El Salvador Travel — Santa Teresa Hot Springs; El Salvador Travel — Termales Alicante; Grupo Alicante — Termales de Alicante; El Salvador Travel — Salto de Malacatiupán; elsalvador.com — Aguas termales en El Salvador; elsalvador.com — Los Ausoles; Hot Springs Guides — El Salvador; Termos del Río — Preguntas frecuentes; elsalvador.com — Buses Alegres en octubre; Diario El Salvador — La geotermia inyecta 23.5 % a la matriz energética
Prices, hours and routes change; confirm with each operator or ISTU before you travel. ia.sv is an independent travel guide and is not affiliated with any of the businesses or government agencies mentioned.
Published: October 19, 2026
Author: ia.sv Team