The Whale Shark Biosphere Reserve is comprised of 146,000 hectares of marine habitat. Its waters are rich in nutrients and large fish and invertebrate spawning events take place every year, attracting the largest fish in the world. The aggregation of this docile fish in this area is one of the most important in the world. For generations, local fishermen have witnessed the presence of this species in the Caribbean. These same stakeholders, along with the National Commission of Natural Protected Areas (CONANP, in Spanish), have developed strategies to obtain more information about this majestic species to improve its preservation and management. This video shows the richness of this marine reserve with a series of aerial and subaquatic images, as well as stories of actions, perceptions, and feelings that guide the passion and commitment of different stakeholders fighting for the conservation of this natural space.