Mountain trekking requires effective communication to ensure safety, orientation and enrich the user experience. This study investigates the role of communication design in the development of tools and support materials, through a practical and exploratory approach carried out over the course of a month in the Galicia region. Different communication supports used on various trails were analysed − from digital tools (mobile apps, websites, social networks) to physical materials (signage, information panels, leaflets and guides). The methodology involved observing and evaluating the supports directly on the trails in a real-life context, examining their applicability, clarity and relevance. The results allow us to reflect on the effectiveness of communication systems and the importance of design in creating solutions that improve the orientation, accessibility and experience of trekkers.