The aim of the national park network in Québec (Canada) is to permanently conserve and protect zones that are representative of the natural regions found within the province, or outstanding natural areas. However, due to the limited size of certain parks, some, mostly located south of the 50th parallel, face challenges in responding to the habitat needs of species with large home ranges. Moreover, certain land-use activities within the peripheral zones of the parks may contribute to a degradation of their ecological value. To help accomplish the mission of the parks, the Société des établissements de plein air du Québec has undertaken to mobilize neighbouring stakeholders. To achieve this, it set itself the objectives of characterizing the peripheral zones; organizing discussion forums with local and regional stakeholders active within them; and rallying the latter to realize concrete conservation actions. Maintaining the ecological value of the parks relies partially on the engagement and participation of peripheral zone stakeholders in conservation efforts to reduce the impact of human activities on these protected lands. Their actions will help ensure that these areas can continue to fulfill essential ecological services.