Marl Lake is across from the South Higgins Lake State Park. The park is about 700 acres and includes Marl Lake and a small boat launch with vault toilets. This area is also the parking area and trailhead for the five mile hiking trail along and around the west and south shores of Marl Lake. The upland is forested with oak, maple, and pine predominating with some white birch, ash, and other species mixed in.
It offers a good opportunity to view bald eagles. April and June are the best months for this, since eagles nest nearby and spend considerable time fishing in this shallow lake. Another bird you may see fishing in Marl Lake is the belted kingfisher. Walk the trails at the state park to view woodland songbirds. The more common are rose-breasted grosbeaks, red-eyed vireos, great crested flycatchers, woodpeckers, chickadees, and nuthatches. While on the trails you may also catch a glimpse of beavers, muskrats, white tailed deer, foxes, and wild turkeys. Marl Lake is an excellent place to view migrating waterfowl in April and May, particularly diving ducks such as common mergansers, buffleheads, goldeneyes, scaup, and ringnecks. Loons are also common during spring migration, but they do not nest here.