The O'Neill Forebay is a popular fishing spot in California, USA, known for its abundance of striped bass, catfish, and bluegill. Nearby activities include boating, hiking, and birdwatching. Fishing tips include using live bait or lures that imitate small fish. The best time of year to visit is from April to October, with temperatures averaging in the mid to high 70s Fahrenheit. It is important to note that the O'Neill Forebay is subject to water level fluctuations due to irrigation needs, so it is recommended to check water levels before planning a trip.