Integrated and sustainable management of natural heritage is essential because of its social and economic implications in the cross-border region. This requires a better understanding of the complex processes that govern it and the development of tools to integrate them into decision-making. The LOREA project (POCTEFA 2009-2012) coordinated the implementation of hydrodynamic models on the coast. However, it detected that regular updating of beach morphology and the ability to simulate dynamics in the shallow zone (surf zone) are key elements for forecasting and prevention (water quality, currents, storm effects). The present project aims to take a new step forward by developing tools in two pilot areas, Zarautz and Anglet, that integrate updated morphological information obtained through advanced video techniques and digital models into existing models.