Learn about the history of Caldea
CALDEA, the largest thermal spa in Southern Europe, was inaugurated in 1994 and is designed to allow visitors to escape and enjoy a wellness experience in thermal waters that are full of contrasts. The building, with its unique architecture, is situated in the urban environment of Escaldes-Engordany, while simultaneously being surrounded by the spectacular Andorran mountains.

Thermal Springs

In 1987, the Escaldes-Engordany City Council decided to make the most of the hot springs that issue forth from the great fault in the subsoil of the parish by exploiting this natural asset to launch the CALDEA Project. The project aimed to allow visitors to experience a new dimension of this natural resource, and to create a leisure and wellbeing experience with a distinctive and innovative philosophy that broke away from the concept of traditional spa centres.

Architectural Draft

The renowned French architect Jean-Michel Ruols, known as the water architect, endowed the Caldea building with a unique and harmonious image that contains mineral and crystal references. Straight and vertical lines predominate, alongside dynamic shapes inspired by the mountainous environment of Andorra, which bring to mind activity and fun. In its early days, CALDEA was conceived as a stone and wood building inspired by Romanesque churches such as the Meritxell Basilica. It ultimately became an avant-garde construction.

The tower site, under construction

The tower, which at 80 m in height is the tallest building in Andorra, is a clear allusion by the architect to the towers of San Francisco and London. The designer always intended to retain the shape of the bell tower so as to project spiritual and mystical references which could interact with the aquatic element.


The facade follows the winding profile of the mountains and is covered by semi-emitting glasses which attenuate the greenhouse effect, reinforce the crystalline appearance of the building and symbolise the brightness and transparency of the water. Inside, the shapes are softer and more sensual, with hints of the human body. The filtered light plays with the reflections on the water in the different areas of the centre.

Designed as a mirror, CALDEA reflects the time, the village and the mountains, while blending into the environment.

Inúu draft inuu chantier

Inúu, the Adults Only space in Caldea, was constructed in 2013 as an annex to the building that houses Thermoludic and Origins. With Inúu, the aim is to continue innovating and offering an experience that suits every audience. Jean-Michel Ruols intends to add a touch of modernity here thanks to the evolution of construction techniques and materials.

Inuu’s indoor lagoon without people

By combining architecture and water, the architect has provided the building with a comprehensive, coherent and harmonious architectural image. To design the Inúu lagoon, he drew inspiration from the Pamukkale in Turkey, a great natural geological formation with giant platforms that create a succession of waterfalls of varying heights.

Aquarium with visitors facing u Care

The cylindrical aquarium, 9 meters high and produced in Shanghai, is the backbone of the building.

INÚU’s mission is to invite visitors to rediscover their wellbeing through the extraordinary properties of the water and the most specialised treatments, in an environment of absolute peace and tranquillity.


Caldea opened Likids—a thermal spa exclusively for children aged 3 to 8—in 2016, after completing renovation works on Thermoludic. This project, built by Fluidra, has become one of the company’s most iconic innovations; it provides an introductory wellbeing experience for the youngest members of the family, in a safe environment that has been especially designed for them.

Boceto caldea

Looking ahead to summer 2019, Caldea plans to build a panoramic lagoon in Thermoludic. The new lagoon, which will extend out from the outdoor terrace and will feature a transparent section, will provide panoramic views of the Valira River. It will be located in the area that is currently occupied by the Jacuzzi, and will be equipped with bubble beds and other water games. This panoramic lagoon will add even more variety to the range of facilities at the centre and will be suitable for all audiences. Currently, the outdoor aquatic spaces are the facilities that are valued most by our visitors. The construction of this new lagoon, with the capacity for at least 50 people, will further enhance their comfort as it increases the number of outdoor water areas, each of which are very different from one another.

snow caldea

On March 25, 2019, Caldea celebrates its 25th anniversary.

25 years of history during which the concept of spa and hydrotherapy has been revolutionized, turning it into a fun activity suitable for all audiences and with a great reception by the public that visits us. The figures support this innovative commitment that continues to be invented and evolved year after year: more than 8 million people have enjoyed the thermal waters in Caldea in these first 25 years of the thermal spa's existence.

Interesting data
  • Total area of Caldea: 44.849 m2
  • Glass surface area: 9.680 m2
  • Amount of water used each day: 700 m3
  • Capacity: 2.646 people
  • Opened: 26 March 1994

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