Mofettes
CO₂ mineral water
Heart & circulation
Băile Tușnad
Romania's smallest town — natural mofettes, carbonated mineral water and a tonic mountain climate for the heart, circulation and nervous system.
At a glance
Băile Tușnad is Romania's smallest town — a spa resort in the Szekler Land, set on the Olt and enclosed by the wooded slopes of the Harghita and Bodoc mountains. Founded as a resort in 1842, with springs already mentioned in the 19th century, it combines three healing factors: natural mofettes (post-volcanic CO₂ dry-gas baths), carbonated mineral waters and a stimulating, tonic mountain climate. Băile Tușnad is traditionally regarded as a spa for the heart and circulation and the nervous system.
Well suited for
- Heart, circulation & blood flow
- Nervous system & exhaustion
- Recovery in a mountain climate
Less suited for
- Acute, severe heart conditions
- Fans of classic thermal bathing
01Overview & history
Băile Tușnad lies in Harghita County in Transylvania, more precisely in the Szekler Land, in the valley of the Olt between the Harghita mountains to the west and the Bodoc mountains to the east. With only a few thousand inhabitants, it is the smallest town in Romania. The area's mineral springs were already mentioned in the 19th century; the town was founded as a resort in 1842.
The whole region is part of the volcanism of the Eastern Carpathians — the source of the numerous gas vents and carbonated springs. Surrounded by dense coniferous and deciduous forests, Băile Tușnad grew into a quiet resort, its bath houses, villas and sanatoriums nestled against the mountain slopes.
02Remedies & composition
The healing power of Băile Tușnad rests on three factors: natural mofettes — post-volcanic CO₂ dry-gas baths, linked to the volcanism of the Eastern Carpathians — carbonated (carbogaseous) sodium-chloride and bicarbonate mineral waters, and a stimulating, tonic subalpine mountain climate. In the mofette the guest „bathes“ fully clothed in the rising gas: the CO₂ is absorbed through the skin, widens the small blood vessels and stimulates circulation.
| Property | Detail |
|---|---|
| Main remedy | Natural mofettes (CO₂ dry gas) |
| Water type | Carbonated, sodium-chloride and bicarbonate mineral waters |
| Climate | Stimulating, tonic subalpine mountain climate |
| Mode of action | CO₂ absorbed through the skin → vasodilation, improved blood flow |
Figures are for orientation only. Exact analysis values vary by spring and facility.
03Indications & contraindications
Traditionally recommended for
- Cardiovascular conditions (states after a heart attack)
- Circulatory disorders & heart-valve conditions
- Mild high blood pressure (hypertension)
- Disorders of the nervous system (asthenic neurosis, neurovegetative dystonia)
- Physical & mental exhaustion
Take care / clear with a doctor for
- bleeding
- acute inflammation
- tuberculosis
- malignant tumours
- acute heart conditions & fever
Mofettes act directly on the circulation: with cardiovascular conditions, always clear the cure with a doctor beforehand.
04Treatments & therapies
| Treatment | Description | Duration |
|---|---|---|
| Mofette / CO₂ bath | „Bathing“ fully clothed in the rising CO₂ dry gas, or a bath in carbonated water | approx. 20–30 min |
| Drinking cure | Cure with mineral water from the springs | as prescribed |
| Aerosols & inhalations | Moist aerosols for the airways | approx. 10–15 min |
| Paraffin & plant baths | Warming packs and herbal baths | approx. 15–20 min |
| Galvanic & magnet therapy | Electro- and magnetic-field therapy on prescription | individual |
| Physio- & reflex therapy | Movement and reflex therapy / rehab | individual |
05Accommodation
Băile Tușnad has spa and sanatorium hotels with their own mofette and treatment departments, as well as smaller guesthouses, villas and apartments in a quiet forest setting. Many of the larger properties offer cure packages including medical supervision.
Spa & sanatorium hotelsWith mofette, CO₂ bath & spa doctors
Guesthouses & villasAffordable, quiet, in a forest setting
Specific hotels with prices and booking links to follow shortly.
06Prices & opening hours (guide)
| Service | Guide price |
|---|---|
| Mofette (single session) | from approx. €5–10 |
| CO₂ bath (single) | from approx. €6–12 |
| Night in a spa hotel (double) | approx. €40–80 / night |
| Medical cure consultation | from approx. €15–25 |
Guide prices, as of 2026. Prices vary by facility and season — please confirm on site.
07Nearby
- Saint Anne's Lake (Lacul Sfânta Ana) — the only crater lake in Romania
- Mohoș peat bog — a protected raised bog in an old volcanic crater
- Forests of the Eastern Carpathians — also known for their brown bears
08Frequently asked questions
What makes Băile Tușnad special?
Băile Tușnad is Romania's smallest town and a spa resort in the Szekler Land on the Olt, tucked between the Harghita and Bodoc mountains. It is defined by natural mofettes, carbonated mineral waters and a stimulating, tonic mountain climate.
Who is a cure in Băile Tușnad best suited to?
Băile Tușnad is traditionally recommended for cardiovascular conditions (states after a heart attack, circulatory disorders, heart-valve conditions, mild high blood pressure) and disorders of the nervous system (asthenic neurosis, neurovegetative dystonia, exhaustion). With cardiovascular conditions, the cure should be cleared with a doctor beforehand.
When is the best time to visit?
Thanks to its subalpine mountain climate, Băile Tușnad is a year-round spa. Summer and early autumn are the most pleasant for hikes and trips to Saint Anne's Lake.
How far is the nearest airport?
Since June 2023 the nearest airport is Brașov-Ghimbav, around 60 km away; further alternatives are Bacău and Sibiu, each around 130–160 km. Băile Tușnad sits on the railway line and the DN12 national road, so arriving by train or hire car is straightforward.
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