Photo by Anton-kurt, via Wikimedia Commons (CC BY-SA 3.0)
🇦🇹 Austria · Styria (Hartberg-Fürstenfeld District)
Photo by Anton-kurt, via Wikimedia Commons (CC BY-SA 3.0)
🇦🇹 Austria · Styria (Hartberg-Fürstenfeld District)
♨ Temperature
110°C
⛰ Altitude
284 m
⚗ pH
—
💧 TDS
—
🌊 Flow rate
—
📅 Established
Hot spring struck 1977 during oil exploration; Hundertwasser-designed resort opened 1997
✓ Verified on 2026-08-02
Rogner Bad Blumau is built around the Vulkania thermal spring, which reaches the surface at approximately 110°C from a depth of around 2,800-3,000 meters, carrying the highest mineralization of any spring in Styria's 'Thermenland' region — a natural salt content of about 17.6 g/L that lets bathers float much as they would in the sea. A second, gentler spring, Melchior, rises from 970 meters at 36°C. The resort itself, designed by Austrian artist and architect Friedensreich Hundertwasser with undulating rooflines, grass-covered roofs and irregular windows, opened in 1997 and has become one of Austria's most photographed thermal spa buildings.
| Salt (NaCl) | 17600 mg/L |
The Vulkania spring was discovered in 1977 during oil exploration drilling. Two decades later the site was transformed into a resort designed by celebrated Austrian architect Friedensreich Hundertwasser, opened in 1997, making the buildings themselves a work of art alongside the thermal water.
Websitewww.rogner-bad-blumau.com
AddressBad Blumau 100, 8283 Bad Blumau, Austria