Highline Lake State Park Access provides boat launch facilities at both the East Boat Ramp and West Boat Ramp (accessible via the West Entrance), with the West Ramp serving as the primary Aquatic Nuisance Species inspection station for all motorboats and sailboats.

The park offers a free Life Jacket Loaner Program at the Visitor Center and West Entrance, and features a hand-launch only area at Bookcliff Campground for non-motorized vessels on Mack Mesa Lake.

Visitors should note that Highline Lake is open to boating March 1–September 30 (weather permitting), with boat capacity often reached before noon on summer weekends, and that both lakes are designated as zebra mussel-infested.