From October 6 to 8, the city of Tortosa is going to welcome A Cel Obert again!

A Cel Obert chooses a theme for each of its editions with the aim of creating a common thread that generates conceptual relationships and works as a link between the different ephemeral interventions. For this reason, the jury will assess, among other aspects, the adequacy of the participants vis-à-vis the proposed theme as well as the originality and quality of their interpretation of the concept whether understood in a literal or metaphorical way.


*The word that heralds the theme of this edition carries multiple meanings in Catalan; in English there is no word that encompasses all the different meanings, so it has been translated into two words.

The theme of the tenth edition of the A Cel Obert festival, corresponding to the year 2023, is illusion / eagerness.

An illusion is the distorted perception of reality, be it due to a physical component or a product of the imagination, results in a fictitious event shaped by a mixture of a lack of personal lucidity and an uncontrolled emotional state.

Eagerness as a feeling is the overwhelming, ungovernable, uncontainable and wild hope we feel when we want to achieve a dream.

Illusion as an optical effect is, simply, the false representation of a hidden truth that we only perceive in secret and never manifests itself as real.



(1): a misleading image presented to the vision : OPTICAL ILLUSION

(2): something that deceives or misleads intellectually


(1): perception of something objectively existing in such a way as to cause misinterpretation of its actual nature


(3): a pattern capable of reversible perspective

“Illusion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/illusion. Accessed 30 Mar. 2023.



The state of wanting to do or have something very much, especially something interesting or enjoyable.

“Eagerness.” Cambridge Dictionary, Cambridge University Press, https://dictionary.cambridge.org/dictionary/english/eagerness. Accessed 30 Mar. 2023.








Once again, A Cel Obert will have a first-class panel of judges made up of well-known professionals from the world of architecture, plastic arts and design. Based on the theme chosen for this edition, illusion / eagerness, the judges will assess, among other relevant aspects, the participants’ adaptation to the proposed theme and their originality and quality in capturing the concept in their ephemeral interventions, whether this is understood literally or metaphorically.

Lucía Ferrater Arquer

Associate architect at the Office of Architecture in Barcelona (OAB), lecturer at ETSALS and representative of ARQUIN-FAD

With a degree in Architecture from the ETSAB (Barcelona School of Architecture), she founded, in 2006, together with Carlos Ferrater, Borja Ferrater and Xavier Martí Galí, the Office of Architecture in Barcelona (OAB). In the same year, her work Centre de Serveis Socials a l’Eixample (Social Services Centre on l’Eixample) was shown at MOMA in New York, as part of the exhibition: “On Site: New Architecture in Spain”.

In 2000 she was a finalist in the FAD Architecture Awards for a residential building in Sant Cugat del Vallés. In addition, in 2017 she won first prize at the 20th edition of the Girona Regional Architecture Awards and in 2018, first prize in the interior design category of the ASCER Ceramic Architecture and Interior Design Awards, co-authored with Xavier Martí, for La casa davant el mar (The house facing the sea) in Port de la Selva.

She has been a Projects teacher in several schools since 2013 and currently lectures at ETSALS (The School of Architecture of La Salle), in Barcelona.

Cristina Bestratén del Pino

Architect, teacher and director of the A Cel Obert festival

Trained in Architecture at the ETSAB and holds a Masters in Design of Space, Products and Communication from the UPC (Barcelona Tech).

Her professional career is multidisciplinary, combining the work of a practicing architect with teaching. Her creative work constantly moves between different fields such as construction of buildings, interior design, urban planning and ephemeral architecture, with the goal that her works function as transformational tools.

The projects that she has developed in the field of ephemeral architecture, all have a clear desire to generate an emotional response, and have won distinctions and selections in festivals, both national and international, and also in the FAD Awards and the Emporia Awards for Ephemeral Architecture, among others. Some of her works can be found in books by publishing houses such as Ifengspace and Promopress or magazines such as Diseño Interior (Interior Design).

Maria Pons Calvet

Escenògrafa i tècnica en educació artística i cultural Terres de l’Ebre

Graduated in Dramatic Art from ESAD in the specialty of Scenography.

During a large part of her professional career, she has worked as a set designer in theater, film and museography projects; she has also collaborated with museums, art centers and festivals, producing educational activities and projects.

Her training and professional activity have allowed her to develop her own language, combining visual and performing arts, which she has been able to apply to different personal creative projects: artistic installations and works.

Currently, she works at the School for Art and Culture of the Tarragona Provincial Council in Tortosa as an education technician; the path she has followed gives her a deep and wide understanding of her work at the School.