Just noticed this thread.
No reason to venture out of the San Diego area to bass fish.
Dixon, El Capitan, Hodges ( closed until Feb.), Jennings, Lower Otay, Miramar, Morena, Murry, Poway, San Vicenre , Sutherland (closed until Mar) and Wolford lakes.
Miramar is extremely clear water and the bass fishing during cold water period is tough.
If the lake is low then the tulies are out of water, most of the catchable bass will be near the dam and that's off limits. I would use a slip shot rigged 6" Roboworm in MM111, with 5 to 6 lb mono on spinning tackle. The are some giant bass in Miramar so a 8" ROF 5 dark trout Hudd swimbait would be a possibility if your son has the right tackle.
Wolhford is a good cold water lake and fishable from shore and also has some giant bass. Slip shot rig using 8 to 10 lb mono, spinning or baitcasting with larger worms like Uptons Cutoms 9" Dragon tail in DV craw would be a good choice. San V the bass go deep so you need boat or rent a boat, all the SoCal finesse presentations work at this lake.
Tom