Marven Lake Backcountry Site 2 (CM2) is a designated wilderness campsite within Fundy National Park, New Brunswick, situated beside Marven Lake on the rolling Fundy Highlands plateau.

The site accommodates up to 8 people and 2 tents, and is equipped with a pit privy. Reservations are required and can be made through Parks Canada. The campsite is reached via the 8. 5 km Marven Lake Trail, starting from the Point Wolfe Beach parking lot.

The trail begins with a steep 2 km climb gaining over 200 metres in elevation before levelling out across a former carriage trail to the lake. Site 2 sits approximately 0. 8 km beyond the Chambers Lake campsite junction.

The trail is wide and gravel-surfaced, suitable for both hikers and mountain bikers. Marven Lake is a shallow, tree-lined lake frequented by moose and notable as one of the only known locations in New Brunswick where the four-toed salamander can be found.