Lac Forbes is located in the Matawinie district of Quebec, with coordinates placing it near 46.49°N, 74.17°W. The lake covers approximately 2,379 acres with roughly 25.6 miles of shoreline, making it a substantial body of water with room for extended paddling. The lake is characterized by calm conditions and includes islands, which offer varied paddling routes and points of interest. The surrounding area features numerous additional lakes, providing options for multi-lake exploration for paddlers looking to extend their time on the water.

A boat ramp is available at the site, facilitating easy launching and retrieval of watercraft. Paddlers will find picnic tables and a picnic shelter on site, along with campsites for those planning overnight stays. The combination of a boat ramp and camping facilities makes Lac Forbes a practical base for multi-day paddling trips in the region.

Nearby communities include Saint-Donat-de-Montcalm and Saint-Michel-des-Saints, which can serve as resupply points for paddlers planning extended outings in the area.