Most regulations for recreational fishing in Mexico focus primarily on offshore boat fishing. However, regulations for inshore recreational fishing in Mexico are insufficient. Every year hundreds of European and American fishermen visit Punta Allen, Mexico to practice fly-fishing. Punta Allen is a coastal village located in the Sian Ka'an Biosphere Reserve, Quintana Roo. For many years, locals have been organized for a sustainable management of lobster fishing. This experience let them to organize and develop internal regulations to manage the newly created fly-fishing activity. The objective of this study is to assess the economic spill from fly-fishing in the community. With data from semi-structured questionnaires to fishing guides and records of cooperatives, the contribution of this activity to the sustainability is explained by describing the internal organization. We observed that in order to increase profits, villagers organized themselves into cooperatives and established alliances with private firms, some of these from the United States. These companies make contact with anglers abroad and offer them all-inclusive packages per day and/or week, including ground transportation, accommodation, meals, and hire local guides with their own boats to take fishermen to fly fishing sites. Local guides have organized five cooperatives to avoid unfair competition by establishing agreements, maximum number of boats, and schedules. Despite few private external firms acquired licenses to provide fly-fishing guiding services, most licenses belong to local cooperatives, which has empowered them in the alliances to co-manage the activity.