Warren Lake is the largest lake within Cape Breton Highlands National Park, located near Ingonish in Victoria County, Nova Scotia. The lake is fed and drained by Warren Brook, with several smaller streams entering around its edges. Near these inlets, the shoreline becomes marshy with lily pads and grasses. The surrounding landscape features birch, beech, maple, and spruce, with mountain scenery providing a dramatic backdrop. The lake is known for its resident loon population.

The primary access point is off Warren Lake Road, Ingonish, where a parking area, picnic facilities, and pit privies are available. A wide sandy beach sits near the parking area, making for a straightforward launch point. The recommended paddle route follows the perimeter of the lake, described as approximately a one-hour round trip. The lake is also suitable for swimming when temperatures are warm enough, and the water warms up relatively quickly during summer.

The site is open from May 15 to October 25, which defines the practical paddling season. The calm waters are particularly noted for reflecting sunsets, and fall colours along the shoreline make autumn paddling visually rewarding. No lifeguards are on duty at the beach.

Warren Lake falls within Cape Breton Highlands National Park, so national park regulations apply. The area is designated moose habitat, and signage reflects this. Leashed pets are permitted on site. A Mobi-Chair is available to reserve by phoning 902-224-2306, and a Mobi-Mat provides access across the sand, making the launch area accessible to a range of visitors.

The paddling character is calm lake travel with no significant current or whitewater. The route is straightforward and well-suited to recreational paddlers looking for a manageable outing within a national park setting.