A haven for swimming and fishing can be found at Shadow Cliffs, only a mile from downtown Pleasanton on Stanley Boulevard.
Shadow Cliffs, formerly a gravel quarry, was donated to the Park District by Kaiser Industries and opened as a park in 1971. Its assessed value of $250,000 was used to obtain a matching grant for development of the park from the U.S. Bureau of Outdoor Recreation.
With this start, the Park District has developed a 266-acre park including an 80-acre lake and ample parking and picnic grounds. There are facilities for persons with disabilities.
Besides the main lake, Shadow Cliffs has an arroyo with a chain of smaller lakes and ponds. No swimming or boating is allowed here; the shady areas and quiet waters make for a peaceful retreat on hot summer days.
May-Labor Day (Sept): 6am-9pm
After Labor Day (Sept)-October: 6am-7pm
Park Curfew: 10pm-5am
$6 per vehicle
$5 per trailered vehicle
$25 per bus
$2 per dog
guide/service dogs free
See website for boat launch Fee