Ferguson and Martinez will be a madhouse this weekend as both allow jetskis and wake boarding. Google Earth fisher's landing and check out all the backwaters in the area. Focus on the channels off the main river were the fish will be funneled to you. Live bait or fresh cut blue gill or carp will get ya some flatheads , The average size is 8lbs with much bigger a very strong possibility. Hidden shore is all the way south by imperial dam but it will probably be full on a holiday weekend.