Greenridge Park is tucked in the hills of Castro Valley with a playground, trails, a basketball court and picnic areas.

The playground has a good size structure, swings (bucket, standard, and tire) and rocking ride-on toys. The structure has four slides (tube, bumpy, spiral, and double), stairs, ladders, a bridge, monkey bars, plus activity spaces underneath. From the playground, on a clear day, there is a beautiful view of Castro Valley and Hayward.

This park also has a basketball court, gazebos for picnics plus benches and BBQs, and paved and dirt trails. Cut down from the parking lot for the basketball court and a nice paved loop for kiddos on scooters or learning to ride a bike. You can also use it to soothe a baby down for a nap with a stroller walk or jog. Go up from the parking lot for a straight paved path (an out and back option with no loop). There is a small dirt path up the hillside behind the basket ball court connecting the two areas. 
it can get windy as this is higher in the hills. There's plenty of wildlife around including deer, turkey, and snakes. So keep an eye out!

There is a parking lot with plenty of spots and a bathroom is also available on site.