Creating smart tourism destinations requires innovative solutions which cover the main pillars of sustainability as sociocultural, environmental, and economic aspects, in order to spread the cultural heritage of these tourist destinations to their visitors. One of the most demanded approaches by the new hyper-connected visitors is the expectation of plunging and becoming a short-term resident to receive a real experience during their visit. Therefore, the scope of this research covers the objective of designing an innovative communication channel between a visitor and a point of interest (POI), which in turn allows agile experiences to be built and provided and increases the dissemination of cultural heritage through new technologies, considering the real needs of the territories and the new digital visitors. In order to address these topics, this paper proposes an innovative and co-created progressive Web-App for visitors called Be Memories in order to spread the intangible heritage of a tourist destination, where the content is co-created by residents of the destination. The tool has been tested in Ceutí, a Spanish village with a high cultural value, which needs to be disseminated through new innovative tools. The trial was launched during local festivities of the village using an Internet of Things device, called a Smart Spot, to establish a communication channel between the visitor and POI. The results of the test were measured using Google Analytics, the reactions of Be Memories in social networks, and the acceptance of other cities and European committees. The results have concluded that Be Memories is able to enable a local experience via agile, fresh, and crowd-sourced content that people enjoy. This channel presents a complementary level of information with respect to official sources, documentaries, and local guide tours, at the same time enabling a mechanism to promote physical visits, walking tours, and cultural heritage via low-cost and sustainable infrastructure.