About us

The European Historic Thermal Towns Association (EHTTA), is a membership organization representing historic thermal spa towns across Europe.

Since 2010 it has been certified by the Council of Europe to manage the European Route of Historic Thermal Towns, as part of the Cultural Routes programme.

The EHTTA was founded in 2009 in Brussels (Belgium) by six Founder Members - Acqui Terme (Italy), Bath (UK), Ourense (Spain), Salsomaggiore Terme (Italy), Spa (Belgium), and Vichy (France). Many of these towns were involved in the 3-year long co-operation project called “Thermae Europae” (Culture 2000 Programme) which aimed to valorise and preserve thermal cultural heritage in Europe, and were keen to continue working together by establishing a permanent network.

As a result, EHTTA was established as a non-profit association based on the need to encourage protect and enhance thermal, artistic and cultural heritage throughout Europe. In 2010 it was certified by the Council of Europe as a European Cultural Route, one of 40 across Europe.

EHTTA has grown from its original 6 Founder Members to a healthy non-profit association, a network of 49 members in 18 countries

We celebrate towns and territories which all have a rich historical and cultural heritage and use their thermal mineral waters for health and well-being.


Active members


Associate Members


Certification of our Cultural Route



Active Members

Municipalities that fall into the strict definition of spa towns. They must comply with EHTTA's criteria

Associate Members

Associations or regions providing their commitment to further the aims of EHTTA and the Cultural Route..

International Members

Reserved for thermal towns outside of Europe which can document the historical relation with European thermal heritage


  • Be within a country which is a member of the Council of Europe.

  • Have a history of use as a thermal spa town dating back to the 19th Century or before.

  • Have an active water source used for bathing or drinking as part of a thermal centre.

  • Have a tradition of cultural events and the infrastructure related: theatres, concert halls, casinos, bandstands...

  • Offer high quality accommodation with specific facilities dedicated to thermal activity.

  • Have thermal architectural heritage dating back at least to the 19th century, with balneotherapy-related buildings classified as historic monuments.