Bureau of Reclamation, California.
8 a.m. to 5 p.m., Monday through Friday. County-operated park open 5 a.m. to 10 p.m. daily. Facilities include picnic tables, barbecue grills, drinking fountains, restrooms, children's play equipment, concession stand, and group picnic area. Fishing season is year-round. Available species include bass, catfish, and crappie. County permit required; contact office to arrange purchase of permit. Non-motorized boats only.
Effective immediately, Reclamation will require all boats launching at Lake Berryessa to participate in a seal program to prevent the spread of invasive mussels. All vessels wishing to launch at Lake Berryessa will be inspected. A red quarantine seal will be applied for 30 days during, which the vessel will not be permitted to launch. Vessels that have finished the 30-day quarantine may return to the lake and have the seal removed by authorized staff and will be allowed to launch. For more information on this updated protocol, please view the press release here: https://www.usbr.gov/newsroom/news-release/5031.
Lake is about 3 miles southeast of Delano, California. Accessible by paved county road.