Mary Avenue Dog Park spreads across a grassy hillside in south Cupertino with enough room that your dog won’t feel crowded even when a dozen others show up. The park sits in a residential pocket of town, shaded by mature oaks, with views toward the foothills—the kind of space where dogs actually have room to run rather than just circle in place.

The park divides into two sections: a larger area for standard-size dogs and a dedicated small-dog enclosure, both fully fenced. The main field is mostly grass with some bare dirt patches where heavy play happens. Dogs have access to water stations, and there’s adequate shade from the trees, though afternoon sun can be intense on summer days. The park opens at dawn and closes at dusk year-round. Mornings before 10 a.m. tend to be quieter; late afternoons and weekends draw more dogs and their people.

Mary Avenue itself is residential and quiet—you won’t hear constant traffic noise. The park sits about two miles from Highway 280 but feels removed from the main commercial spine of Cupertino. Nearby, Vallco Park offers additional dog-walking trails if you want to expand your route. The address puts you near the Cupertino High School area, in the southern part of the city where density drops and green space opens up. No off-leash hours; dogs must be on-leash outside the fenced areas. The terrain is gentle, no steep climbs, so it works well for older dogs or those building stamina. Bring a collapsible bowl or water bottle since the park doesn’t always have reliable water pressure from the spigots during peak summer months.