'Lost forest' is the winning pavilion of the ideas competition organised by TAC! Festival of Urban Architecture in its second edition. This architectural event, which has chosen the cities of San Sebastian and Valencia as its 2023 venues, is organised by the General Secretariat for the Urban Agenda, Housing and Architecture of the Ministry of Transport, Mobility and the Urban Agenda (MITMA), together with the Arquia Foundation. In the Basque Country, it also has the support of the Department of Territorial Planning, Housing and Transport, Land and Architecture of the Basque Government, the International Architecture Biennial of the Basque Country MUGAK, the Habic cluster and the Basque Country Institute of Architecture.

The pavilion is the proposal of the Madrid-based team of architects formed by Julia Ruiz-Cabello Subiela and Santiago del Águila. It aims to bring the reality of forest fires to the urban environment and to draw the attention of the public to this problem head-on. The proposal is inspired by the morphology of Mount Urgull, the sculptural symbol and lung of the city, to confront it and erect an iconic structure made up of burnt tree trunks. "We understand our pavilion as a place of transit and contemplation, a sensorial stroll through the majesty of nature which, although burnt, continues to create spaces for reflection", say the authors.

With this pavilion they intend to give this wood that remains in the forests after fires a preferential place in people's memories in order to alert people to the emergency of instilling an ecological conscience with respect to the care, maintenance and sustainable management of forests. It is located in Sagüés, a space between the urban and the natural where sea, mountain and city converge, in a topography where the beauty and harshness of the abrupt emerge. It is the end of a seafront that, through its promenade, connects with the city of San Sebastian, in an unfinished place with a strong local identity.

Programming at the TAC! pavilion:

• October 10, inauguration of the pavilion and exhibition of the works submitted to the competition, with a round table and projection.
• October 11, Radio Show: 'Fluido Rosa', Radio 3 RNE
• October 17, lecture 'Megafires'
• October 20, Presentation of the Wood Week
• October 28, Woekshop by José María Torres Nadal, 'Gardening on scorched earth'
• November 5, Koldobika Jauregi´s action performance, 'Ephemeral graphic'