Barr Lake State Park Access provides a boat ramp located on the east side of the lake accessed through the main entrance, accommodating sailboats, hand-propelled craft, and motorized boats with 10 horsepower or less (boating restricted to north half of lake only).

The park charges $10 for a daily vehicle pass and is open 5 a. m. to 10 p. m. daily; note that water levels fluctuate seasonally and the boat ramp may close during low-water periods.

Additional amenities include parking, a nature center, picnic areas, and 21 miles of trails for hiking and biking around the 1,950-acre reservoir.