Cull Canyon Regional Recreation Area

Cull Canyon Regional Recreation Area is OPEN.

Park Info

18627 Cull Canyon Rd. Castro Valley, CA 94552
(Heyer Ave. at Columbia Dr.)

No fee
Dog: No fee. No dogs allowed inside fenced swim area

Park Hours
Open between 5am to 10pm unless otherwise posted or permitted.

Gate Hours
Mar - Nov
   8am - 10pm
Dec - Feb
   8am - 8pm

Swim Hours
NOTICE: Swim area is CLOSED. No Swimming Allowed.
If parking and or swim capacity is reached, entrance gates may close for the day.
Swim Facilities Schedule

Phone Numbers
Toll Free: 888-EBPARKS (888-327-2757), option 3, extension 4523

> Trail  Map
> Park Map [PDF]
> Google Map

Cull Canyon Regional Recreation Area

About The Park

This popular Castro Valley swimming spot is only a short drive north from Interstate 580 on Cull Canyon Road in Castro Valley.

The lagoon won the 1966 Governor's Design Award for Exceptional Distinction for Recreational Development in the category of landscape.

When the swim area was constructed, a secondary dam was built to provide an inner swimming area complete with a sandy beach. Never previously tried, this innovation made the swim area water level independent of the reservoir's, unaffected by summer draw-downs.

Swim Facilities Capacity Notice
Once the swim facility capacity is reached, there will be no new entries allowed for the remainder of the day (or at the discretion of the Park Supervisor), for the safety of the public. Please take this into consideration when planning your visit.

Park Activities

NOTICE: Swim area CLOSED during COVID-19 pandemic. Swimming NOT permitted.

There are several reservable picnic areas outside the swim complex. For information, call 1-888-EBPARKS or 1-888-327-2757, press option 2.

Cull Canyon also is on the Chabot-to-Garin Regional Trail, which is being developed between the two parks. The trail runs along the east side of Cull Canyon Reservoir, then heads north for six miles through East Bay Municipal Utility District property to EBMUD's Chabot Staging Area on Redwood Road (an EBMUD hiking permit is required for this section, phone 287-0459). From here the Willow View Trail leads into Anthony Chabot Regional Park.

To Reach The Park

  • From I-580 eastbound in Castro Valley, take the Grove Way exit. Turn to the north (left) on Grove Way. Turn left onto Cull Canyon Road and continue to the park entrance on the left-hand side.
  • From I-580 westbound, take the Castro Valley exit and continue west (left) on Castro Valley Blvd. to Crow Canyon Road. Turn right on Crow Canyon, then left on Cull Canyon Road and continue to the park entrance on the left.


Click the map image below to see an enlarged version.

Trail Map

> Park Map [PDF]


Wednesday, October 28, 2020 (Today)

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