In normal conditions, access to Macaya Peak National Park is via Haiti's southern peninsula, with Les Cayes the nearest major city and rough onward travel toward the Massif de la Hotte. Roads, bridges, fuel availability, and local security can change quickly.
Do not treat old route descriptions as reliable. Before any future attempt, confirm access with Haitian conservation workers, local authorities, and guides who know the current state of the roads and communities around the park.