The Yucatán Peninsula houses many rich and productive ecosystems, from coastal lagoons to mangrove forests to coral reefs. Last winter, Impact Blue, WildAid Marine, and the Regional Federation of Fishing Cooperatives in Yucatán came together to develop an effective, low-cost Marine Protection System (MPS) Plan to strengthen the enforcement of fisheries regulations in Scorpion Reef National Park (SRNP). Last month, the first interinstitutional patrols of SRNP were completed, and patrolling agencies intercepted, and inspected a number of vessels, some of which were found to be violating area regulations. These joint patrols mark a significant step towards improving the protection of Scorpion Reef National Park and sustainable management of local fisheries resources.