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  • The GrimmingTherme in Bad Mitterndorf at sunrise, its curved green roof above the outdoor pool with mist over the mountains behind.
  • The GrimmingTherme seen from the air, its pools and green-roofed hall in the meadows of the Bad Mitterndorf valley below the peaks.

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GrimmingTherme

Thermal bathBad Mitterndorf, Styria, Austria
  • Water slides
  • Indoor
  • Sauna
  • Massage
Water temperature
40 °C
Well depth
2,413 m

Where these facts come from

  • Water facts read from grimming-therme.com, Checked Sep 23, 2026
  • Operator's site checked Oct 5, 2026 and answering

A thermal bath at Bad Mitterndorf in Austria's Steiermark, drawing water of 40 °C from a well nearly 2,400 metres deep. Its water has a mineralisation of 1,876 mg/l.

About

The GrimmingTherme is a thermal bath at Bad Mitterndorf in Styria, below the Grimming massif. It has three indoor and four outdoor pools, a separated children's area with a giant slide, and a sauna village kept apart from the bathing hall.

The water

The bore reaches 2,413 metres and finds water at 40 °C at the bottom, delivered at 1.5 to 2.0 litres a second. The venue classifies it as an acratic, fluoride-bearing calcium-magnesium sulphate thermal water, with 1,876 mg of dissolved minerals per litre and a pH of 7.2; calcium, magnesium, fluoride and sulphur dominate the analysis.

Pools

Most basins are 1.35 m deep. The indoor and outdoor relaxation pools are held at 33-34 °C, as is the sauna relaxation pool. The youth and sports pool is cooler, at 26-27 °C, and deeper at 1.30 to 1.80 m. The open-air cold pool runs at 24-25 °C and the sauna plunge pool much colder, at 12-14 °C. The children's splash pool is 0.3 m deep at 33-34 °C, with the slide beside it.

Sauna village

The Saunadorf is separate from the thermal area, with several cabins, rest areas and a pool of its own. Admission is from the age of 16.

Visiting

The thermal bath opens from 08:00 to 21:00 and the sauna from 09:00 to 21:00, with the water cleared at 20:45; the Welldiana Club Spa runs 10:00 to 19:00. The bath sets its own age brackets: children 4 to 14, youth 15 to 17, seniors from 60. It is at Neuhofen 182.

Water

Minerals
Calcium, Fluoride, Magnesium, Sulphur

Source: grimming-therme.com · Checked Sep 23, 2026

Prices

Adult day ticketSingle tickets Mon – Fri, thermal spa day ticket; weekend, public holiday, bridge day and school holiday surcharge € 2/person€24
Adult short ticketSingle tickets Mon – Fri, 4-hour thermal spa ticket€19.50
Child day ticketSingle tickets Mon – Fri, thermal spa day ticket, children 4-14 years€13.50
Family ticketFamily ticket (day ticket) thermal spa, 2 adults + one child; each additional child € 6,50€56
Senior day ticketSingle tickets Mon – Fri, thermal spa day ticket, seniors aged 60 and over€19
Student day ticketSingle tickets Mon – Fri, thermal spa day ticket, students with valid ID only€19
Sauna supplementSauna surcharge€12.50
Season passAnnual pass adults, thermal spa; valid one year from date of purchase incl. maintenance closure period€715

Source: grimming-therme.com · Checked Oct 18, 2026

Facilities

Only facilities that are recorded are listed. An absent entry means nobody has recorded it, not that it is missing.

Location

Neuhofen 182, 8983 Bad Mitterndorf

Nearby

The outdoor pools of Apumare in Attnang-Puchheim with orange and yellow slides on a green slopeWater park

Apumare

Attnang-Puchheim

  • Water slides
  • Outdoor pools

Location data © OpenStreetMap contributors, ODbL. · last checked against the source on Oct 12, 2026

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