Maligne Lake is a lake in Jasper National Park, Alberta, Canada. The lake is famed for the colour of its azure water, the surrounding peaks, the three glaciers visible from the lake, and Spirit Island, a frequently and very famously photographed islet. The lake is located 44 km (27 mi) south of Jasper town, and is accessible by motor vehicle, including shuttle buses from Jasper. Boat tours run to Spirit Island in the spring to autumn season. The 44 km Skyline Trail, Jasper's most popular, highest and above treeline, multi-day hike, begins at Maligne Lake and finishes near the town of Jasper. Other popular day hikes include the Opal Hills and Bald Hills loops. Winter activities include cross-country skiing and snowboarding.

Jasper National Park, in Alberta, Canada, is the largest national park within Alberta's Rocky Mountains, spanning 11,000 km2 (4,200 sq mi). It was established as Jasper Forest Park in 1907, renamed as a national park in 1930, and declared a UNESCO world heritage site in 1984. Its location is north of Banff National Park and west of Edmonton. The park contains the glaciers of the Columbia Icefield, springs, lakes, waterfalls and mountains.