Stevens Creek Reservoir is an artificial lake located in the foothills of the Santa Cruz Mountains near Cupertino, California. A 1,063-acre (430 ha) county park surrounds the reservoir and provides limited fishing ("catch and release"), picnicking, hiking, and horseback riding activities. Although swimming is not allowed, non-power boating (such as a kayak) is allowed for certain parts of the year. No powered boats or jet skis are allowed. All vessels must be inspected for invasive Quagga mussels prior to launch.