Lake Granby offers multiple public boat access points, including the Sunset Point Boating Site on the southwest shore, which features a single-lane boat ramp, courtesy dock, restrooms, and a gin pole for sailboat masts.

All boats require Colorado Parks and Wildlife inspection for zebra and quagga mussels before launching, with access available only when state inspectors are present.

Day-use fees apply ($5/day), and additional boat rentals and marinas are available at nearby locations like Beacon Landing Marina and Indian Peaks Marina.