Castro Valley/Hayward/San Leandro/San Lorenzo
- Castro Valley Community Center, 18988 Lake Chabot Rd, CV. 3 sand playgrounds, one for toddlers.
- Cull Canyon Swim Lagoon, Cull Canyon Rd, CV. Supervised seasonal swim lagoon, sand and grass.
- Earl Warren Park,4660 Crow Canyon Rd, CV. Small; bridge, creek.
- Lake Chabot, 17930 Lake Chabot Road,CV. Rental rowboats, canoes, pedalboats, biking,hiking,fishing,ducks, picnic areas. Parking fee of $4, but you can park on Lake Chabot Road and walk in.
- Deerview Park, 5780 Thousand Oaks, CV. Take Cull Canyon to Columbia, turn left. The park will be well up the hill on the left. Small play area but a nice big field for running around in. No toilets.
- Palomares Hills Park, 7050 Villareal, CV. Take Castro Valley Blvd. East to the Palomares development. Turn left into the development on Villareal. Go up past the recreation center, and the park will be on the left. Not a lot of stuff for the really little kids (too hard to climb) but lots of fun for 18 months and up.
- Greenridge Park, 6108 Greenridge, CV. Take Crow Canyon to Greenridge (opposite convenience store) and turn left up the hill. Follow the street all the way up to the top. Relatively new play area. Some shade.
- Carlos Bee Park, 1905 Grove Ave, Hayward. Playground, covered picnic area, creek with swinging vine.
- Don Castro, 22400 Woodroe Ave,off Kelly St, Hayward. Swimming, fishing, biking, hiking, sand.
- East Avenue Park Almost at the end of East Ave.in the hills of Hayward. Nice play structure with slides, swings, and climbing areas. Walking trails.
- Garin Park, 1320 Garin Ave.,top of Garin Ave., Hayward, above Mission Blvd Pioneer barn, hiking trails, fishing, seasonal naturalist activities.
- Hayward Regional Shoreline and Interpretative Center, 3010 West Winton, Hayward the frontage road off 92. Interpretive nature center, shorebird viewing and education,gift shop, hiking trails.
- Kennedy Park, 19501 Hesperian Blvd, Hayward. Seasonal/Weekend activities include a small petting zoo, carousel, train ride, playground, snack bar. Very nice playground, lots of grassy open space for children to run around.
- Memorial Park, 24176 Mission Blvd. Hayward, behind the Plunge. Small playground *caution, there are a lot of homeless and colorful characters in this area.
- San Felipe Park,2058 D St. Hayward. Playground. Close to Sulfur Creek.
- Sulphur Creek Nature Center, 1801 D St., Hayward, 510-881-6747 Wildlife viewing, nature programs, lending library.
- Weekes Park, 17182 Patrick Ave. Hayward Library, playground.
- Meek Park, Boston & Hampton Roads, San Lorenzo. Playground, BBQ pits.
- Marina Park, Neptune & Fairway Drives at the San Leandro Marina. Old West playground, stage coach train to climb on. Can be chilly even on days warm elsewhere.
- San Lorenzo Community Center Park, 1970 Via Buena Vista, San Lorenzo. Playground, duck pond.
- Central Park (Lake Elizabeth), Fremont. Stevenson Exit, west off 880; right on Paseo Padre (park is on left). Swimming, boating, biking, walking trail around lake, nature center, large playgrounds, ducks.
- Coyote Hills. End of Patterson Ranch Road off Newark Blvd, Newark. Nature center, biking, Indian shell mounds,marshes(often very windy), hiking.
- Warm Springs Park, 47300 Fernald St, Fremont.
- Niles Depot, 36997 Mission Blvd. Fremont. 1st weekend of month. RR museum and model train layout.
- Ardenwood Historical Farm, 34600 Ardenwood Blvd. Farm animals, hayrides, demos on weekends. Seasonal special events.
- Newark Community Center, Newark.Take 880 south to Decoto exit, left on Newark Blvd. ,left on Cedar. Swim lagoon for children under 7, grassy fenced-in area.
- Crown Beach, Eighth St. and Otis Dr., Alameda. Wading, swimming, walking trails, dog park, Crab Cove nature center.
- Montclair Park, 6300 Moraga Ave. Oakland. Park Blvd. exit off Warren Fwy, turn left on Park Blvd. Newly renovated.
- Tilden Park, Entrances off Wildcat Canyon Road and Grizzly Peak Boulevard in Berkeley. Steam Train, Pony rides, Merry-Go-Round (currently under renovation), Little Farm, swimming in Lake Anza.
- Tassajara Ranch, Turn right and the parking lot is on the right. Very good for small children- small slides and play areas. Limited shade. In the summer there is water play, so bring a suit or a change of clothes.
- Shannon Park, Dublin. Take 580 east to Foothill. Go north on San Ramon Blvd. Shannon Park is on the left at the Dublin Community Center. Two play areas, plus water play in the summer.
- Sycamore Park, Danville. Take Crow Canyon east over 680. Turn left on Camino Tassajara. Sycamore park is on the right, about 3 or 4 stoplights up the road. 2 large play areas, plus a big field. Water play in the summer so bring extra clothes. No shade at all so avoid this park in the middle of the summer, as it is too hot.
- Osage Station Park, Danville. Take 680 towards Walnut Creek. Exit at sycamore and go east. Turn right at the second light on Brookline (or Brookdale?). The street meanders around and ends at the Osage Station parking lot. Water play, lots of shade. This park is large so it is hard to supervise lots of small children. Lots of fun things to do.
- Central Park, San Ramon. Located on Alcosta at Bollinger Canyon (east of 680). Get there on the freeway or use Crow Canyon and turn right on Alcosta. 2 large play areas, water play in the summer. A little hard to supervise if you have multiple kids and it’s busy, because it’s hard to see everything.
- Sports Park, Pleasanton. Take 580 east to Hopyard. South (right) on Hopyard to Parkside. (It will say Parkside on the left and South Valley Trail on the right). Left on Parkside and take the second right into the park. Go about a mile inside the park (you will pass lots of baseball diamonds on the right) to the park at the very end. The play area is obvious. 2 play areas, but both are acceptable for fairly young (2 yr. old) children. Lots of shade.