Knowledge of the surrounding nature and the soils was decisive for the structural strategies envisaged. This allowed a more surgical intervention in the ecosystem. Moreover, the ecological sensitivity of the site required planning ahead, in a timely manner considering in particular, migration routes and spawning areas. The initial sensitization of the environmental authorities led to the filing of a well-crafted authorization request, after coordination and completion of an essential ecological characterization, verification of the need to compensate the affected wetlands with a view to the formal production of the application for environmental authorization.
The overall plan made it possible to carry out additional soil studies to ensure the optimal location of the shelter, the platform, the tower, the footbridges and related structures. These preliminary steps made it possible to carry out a study of structural and civil engineering concepts adapted to the environment and its issues and sensitivities; in order to provide the site with reception facilities while respecting the protected area of the site: marked trails, interpretation markers, footbridges, interpretation shelter and observation tower. Sensitivity to the environment required designers to develop facilities with a minimal or even positive ecological footprint (shadehouses and caches), and buildings that blended into nature. The supervision in alternating residence of the architects, landscape architects and engineers allowed the progressive resolution of the contextual problems which could arise in order to ensure the fluidity of the construction site.