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Lake Berryessa

Visit napa county's largest lake

At over 23 miles long, Lake Berryessa is a must-see marvel. One of the largest freshwater lakes in California, this scenic natural wonder is bordered by miles of trails, roadways, and hills jutting out from the valley. Visit Monticello Dam which plunges hundreds of feet below the reservoir and catch a glimpse of the bell-shaped Glory Hole spillway that many have mistaken for a mysterious natural phenomenon.

Lake Berryessa

Lake Berryessa

Monticello, California, 94558
Distance from Hotel: 31 miles

Hours & Prices


Prices - Vary


  • Monday-Friday: 7:30 a.m. to 4 p.m.
  • Monday-Friday: 12 p.m. - 3 p.m.
  • Saturday and Sunday: 10 a.m. - 5 p.m.
  • Saturday and Sunday: 12 p.m. - 3 p.m



  • Photography
  • Walking
  • Hiking
  • Fishing
  • Bird Watching
  • Boating

What is the hole in lake berryessa, california?

The Glory Hole is a man-made spillway that services the Monticello Dam. When the water in the reservoir gets too high, the spillway redirects the flow of the water underground to prevent it from spilling over the dam.

Can you swim in lake berryessa?

Yes, swimming is allowed in the lake and is considered safe, except in designated areas. During the summer, the water temperature is great for swimming, often exceeding 80 degrees. There are no lifeguards on duty.