Gatineau Park leaves change colour in fall, tourists and locals are drawn to the park's lookouts, roads, and pathways to enjoy the autumn scenery. Pink Lake is a meromictic lake found in the park. Tiny algae in the lake give it a bright green colour. The lake's name comes from the Pink family who originally owned property in the area. The park includes many other . King Mountain, the highest peak in Gatineau, rising an almost vertical from the Eardley Escarpment, was the first triangulation point in Canada. Also, the mountain's unique positioning provides an interesting spectrum of vegetation ranging from evergreen
Harrington Lake who bought property here in 1867. The retreat is accessed by Chemin de Lac Meech with a gatehouse, staffed by the Royal Canadian Mounted Police Protective Policing Service, at the driveway of the retreat. The Prime Minister's motorcade accesses Harrington Lake from Ottawa via Quebec Autoroute 5. Several families came in the 19th century to settle the Harrington Lake area, including the Harrington and the Mousseau families. The lake eventually became known as "Harrington Lake" in English and "lac Mousseau" in French. The Mousseau family had built a farm on the shores of the lake, which remained in the family