San Gabriel Valley family guide
Things to Do in Diamond Bar with Kids
Curated by Punita Patel
Reviewed & updated June 2026 · we check listings regularly, but hours and prices change — confirm before you go.
Things to do in Diamond Bar
Sycamore Canyon Park
Diamond Bar's best nature outing for families, with a shaded 1.6-mile round-trip trail winding under sycamores and oaks along a creek. Head a short way up from the play structure to reach the little overlook waterfall, which flows best after winter rains. Start early on hot days — the mesa par-course section is exposed.
FreePantera Park
A big, well-kept neighborhood park with two separate sand-surface playgrounds — one for little ones, one for bigger kids. Basketball, tennis, ball fields and lots of picnic space make it easy to make a morning of it. The adjacent Pantera Dog Park is a bonus if you're bringing the family pup.
FreeCarlton J. Peterson Park
A local favorite with a padded-surface playground plus a skate park, so it works for a wide range of ages at once. Ball fields, picnic tables and barbecues make it a solid pick for a weekend cookout with the kids. There's a short walking path if the grown-ups want to stretch their legs.
FreeSummitridge Park
A hilltop park with playgrounds, picnic areas and trails, home to the Diamond Bar Center on Grand Ave. The elevated setting means nice breezes and views, and paths connect into the wider trail system toward Sycamore Canyon. Park by the Center and let the kids run the grassy slopes.
Free
Diamond Bar Library (LA County)
A bright, modern LA County branch on Copley Dr with a dedicated kids' area and regular story times and children's programs. A reliable free stop for a hot afternoon or when you need a quiet reset. Check the LA County Library events calendar before you go, since family programming rotates.
FreePeter F. Schabarum Regional Park
Just over the line in Rowland Heights, this 575-acre county park is the big-nature option near Diamond Bar, with playgrounds, wide lawns, a dog park and miles of hiking and equestrian trails. Come on a weekday to skip the weekend parking fee. Bring water and hats — the trails climb into open, sunny hills.
Free weekdays; $7/car weekends & holidaysSeasonal & outdoors near Diamond Bar
The closest splash pads, patches, lights and more — distances from Diamond Bar.
Diamond Bar is part of the San Gabriel Valley family guide — see the region's best things to do, local eats and events.
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