Thanks, Jeff. There's some kind of city park on the side opposite Marine World. I called the City of Vallejo once, & they said using the lake was OK. I just hope there are bass in it.

The one just off I-80 - it's called something like Laguna Park - supposedly has some bass, too. The guy I talked to said it's shallow, very weedy in the summer, & has a lot of Sacramento perch (are those squawfish?).