Lac Anticagamac is a backcountry lake located in the western sector of La Mauricie National Park in Quebec. It sits within a Canadian Shield landscape and is accessible only by canoe, requiring a portage from Lac Wapizagonke. The standard route departs from the Wapizagonke picnic area, involves a 0.15 km moderate portage (approximately 10 minutes), then 4.6 km of paddling on Wapizagonke Lake (roughly 1 hour 10 minutes), followed by a 2.4 km very difficult portage (approximately 1 hour 30 minutes), and finally 0.2 km of paddling to reach the lake and its campsite. An alternate route from the same starting point replaces the 2.4 km and 2.1 km portages with a single 3.0 km very difficult portage, bypassing Anticagamac entirely. Paddlers are advised that once on the water at Wapizagonke, they should keep to the left to pass under the Parkway, which confirms they are on the correct route.

The lake has one backcountry campsite available for one or more nights. Fires are strictly prohibited at Lac Anticagamac, so paddlers must plan accordingly and bring appropriate cooking equipment. The campsite does not have a picnic table but does provide access to a dry toilet and a bear-proof food hanger. Registration at either the Saint-Mathieu or Saint-Jean-des-Piles entrance is required before heading to the campsite. Paddlers departing for Anticagamac Lake during the summer season must leave no later than 3:00 pm, and no later than 2:00 pm after Labour Day. The backcountry camping season at Lac Anticagamac runs from mid-June to early September.

The lake is noted by paddlers as a particularly beautiful destination within the park, and it also serves as a waypoint on longer multi-day loops that connect to Lac Waber, Lac Tessier, Lac Maréchal, Lac du Caribou, and the Matawin River. An Anticagamac Lookout is accessible by canoe and/or hiking, offering views of the surrounding landscape. Row-and-go canoes are available for rent at the Shewenegan Picnic Area, which can allow paddlers to reach certain backcountry lakes without portaging, though the very difficult portages on the Anticagamac route make it a more demanding destination suited to experienced paddlers.