Boy Lake Public Water Access Site features a concrete boat ramp on the southwest shore off County Road 3, managed by the Minnesota Department of Natural Resources and open year-round for motorized and non-motorized watercraft.

The facility accommodates the lake's 3,466-acre size and serves as the primary public access point for the surrounding Chippewa National Forest area near Longville.

Boaters should be aware of aquatic invasive species prevention requirements and note that zebra mussels were confirmed in the lake as of September 2025.