Vasona Lake County Park includes 45 acres of lawn which can be used for informal play such as frisbee tossing, softball or soccer. There are several picnic areas available on a first-come, first-served basis. Eight reservable group areas are placed at scenic locations throughout the park.

Paddle boats and row boats are available for rental from early spring through early fall. Check out Los Gatos Recreation for more information! The lake also offers fishing for black bass, crappie, catfish and bluegill.

The Youth Science Institute (YSI) is located at the park's north end and offers programs and outings which interpret science and inspire an appreciation for the natural environment. Behind YSI, visitors can find solitude while hiking the Viola Anderson Native Plant Trail.

Adjacent to Vasona Lake County Park is the Town of Los Gatos' Oak Meadow Park. Here, visitors can ride a carousel, picnic, play informal sports, or enjoy the playground. Miniature train rides on the Billy Jones Wildcat Railroad originate in Oak Meadow and run through Vasona Lake County Park.

Hikers, runners, bicyclists, and skaters enjoy the Los Gatos Creek multiple use trail which begins at Lexington Reservoir and follows the Los Gatos Creek for nearly 9.5 miles through the Town of Los Gatos, Vasona Lake County Park, Los Gatos Creek County Park, and the cities of C​ampbell and San Jose.