Took Ellie and Zoey to Irvine Regional Park last weekend. It was the closest fishing spot to me that allowed dogs but the fishing ended up being a joke so I didn’t even waste my time.
I wouldn’t recommend this place for fishing but it’s a nice picnic spot for families with young children. It’s only $5 to enter and there are tons of shaded picnic areas with clean bathrooms. They also have paddle boat rentals and the Irvine Park Railroad.