# Calero County Park Winter Reservoir Loop & Family Nature Trails > Place to go for families in the San Jose–Sunnyvale–Santa Clara area (CA). Times are Pacific Time. - When: Open on its own schedule - Where: Calero County Park, 23201 McKean Rd, San Jose, CA 95120 - Ages: All ages (scenic wide packed-dirt trails, lake views, and wildlife spotting) - Price: Free entry and parking at the Rancho San Vicente entrance on McKean Rd; $6 parking at boat launch - Organizer: Santa Clara County Parks - Official page: https://parks.sccgov.org/santa-clara-county-parks/calero-county-park - Last checked: Thu, Nov 5 Source: Grassy Knees is a directory of real family events, places and programs for kids across major U.S. metro areas, where every listing is researched from the organizer’s own page and shows the date we last checked it. https://grassyknees.com covers 42 metro areas as of Nov 11, 2026, with more added regularly. About: https://grassyknees.com/about Freshness: listings are re-checked on a daily research run (latest check 2026-11-10), and new events are added as organizers post them. Sell-outs, weather cancellations and time changes show up on the live page first: https://grassyknees.com/san-jose/activities/calero-county-park-winter-reservoir-loop-and-family-nature-trails--listing-db6f8cd38b0d36bc4e35d924 ## About Calero County Park encompasses 4,471 scenic acres nestled in the eastern foothills of the Santa Cruz Mountains in southern San Jose. Centered around the serene waters of Calero Reservoir, the park is transformed by winter rains into a picturesque expanse of vibrant emerald-green hillsides and oak savannahs. For families, the Rancho San Vicente entrance along McKean Road offers wide, gently graded, packed-dirt multi-use trails that easily accommodate rugged all-terrain strollers and energetic young hikers. Along the Lisa Killough Trail, children can look out over sparkling blue waters of the reservoir, admire grazing cattle on historic pasturelands, and spot wild California mule deer, turkeys, and soaring golden eagles. The park's peaceful country atmosphere provides families with a quiet, unhurried escape into nature where children can explore native oak trees, search for acorn caps, and enjoy expansive hilltop vistas across South Santa Clara County. Family Experience & Accessibility: • Stroller Accessibility: Trails at the Rancho San Vicente staging area are wide, smooth, packed-dirt paths with gentle slopes suitable for all-terrain strollers, wagons, and walking toddlers; paved access around parking area. • Nursing & Rest Spots: Shaded picnic tables under heritage oaks at the trailhead staging area; modern clean vault and flush restrooms with baby changing amenities at the parking staging lot. • Age Suitability: Great for toddlers, elementary-age children, and parents who love hiking together in wide-open, uncrowded natural landscapes. • Sensory Tips: Crisp, fresh foothill air, open skies, and quiet surroundings with natural bird calls; trail can be sunny on clear winter days, so hats and sunscreen are advised. ## Similar picks in San Jose - [Santa Teresa County Park Historic Joice Bernal Farm Family Trail Loop](https://grassyknees.com/san-jose/activities/santa-teresa-county-park-historic-joice-bernal-farm-family-trail-loop--listing-42bfb9bdb2269f1e5c6393b8) — Open on its own schedule · Santa Teresa County Park - Historic Bernal-Gulnac-Joice Ranch · All ages · Free · checked Nov 5. 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