Lake Berryessa ranks among California’s largest freshwater lakes, stretching about 23 miles across with 164 miles of shoreline. It’s perhaps best known for the striking so-called “Glory Hole” feature, a circular overflow that funnels water into Putah Creek.
In the summer, it becomes a favorite getaway for Bay Area residents, who can reach it in under two hours by car from San Francisco.
Visitors flock here during peak swim season from June to August, as water temperatures can climb to around 75°F on warm days. The lake offers plenty of ways to enjoy the water, including kayak and paddle boat rentals.
Swimming at Lake Berryessa
If you plan to swim, keep in mind there are no lifeguards on duty, so all activity is at your own risk. Swimming with a companion, keeping a close eye on children, and being cautious with alcohol are strongly recommended.
Swimming is allowed in most areas, except within 1,500 feet of Monticello Dam and in clearly posted restricted zones. The lakebed can be uneven with sudden drop-offs, so be careful when wading far from shore.
Popular swim spots include Oak Shores and Smittle Creek, both managed by the Bureau of Reclamation and equipped with picnic areas and restrooms. Other locations—like Pleasure Cove, Steele Canyon, Markley Cove, Spanish Flat, and Putah Canyon—are run by concessionaires and offer added amenities such as boat launches, rentals, and camping options. Visitors can rent everything from paddleboards to jet skis.
More activities and tips for visiting Lake Berryessa
In addition to swimming and boating, Lake Berryessa is a popular destination for all sorts of lakeside recreation. Fishing is particularly popular, with species like trout, bass, catfish, and bluegill.
On land, easy hiking and biking trails wind through oak woodlands and grassy hills, perfect for picnics and bird-watching. Campsites, RV spots, cabins, and even houseboats provide overnight options.
Lake Berryessa is located in Napa County near Blue Ridge and Cedar Roughs. If you’re in for a long weekend, consider combining your lake outing with another stop in wine country, such as the nearby Castello di Amorosa or Jarvis Estate Winery.
