Gun Lake is the location of a State Park with a boat launch, two beaches, a campground, and picnic areas.

Other than Robbin's Bay, popular fishing spots include Pickerel Cove on the southern shore, Bairds Cove on the left "wing" of the lake, and the many channels that protrude off the "butterfly" part of the lake.

The shops and businesses sprinkled along the shores and inland enjoy that time of year.

In the winter, there are other activities such as Winterfest - where events such as a polar bear dip take place, and ice fishing.

Freshwater crustaceans, known as crayfish, also have some residency in the lake, and can be found in many of the shallows in the summertime as their young grow.