Eric is right you don't have to have a boat to catch blues. Probably one of the better places to catch blues from the bank would be below a dam,creek inlets. If you can find a hotwater discharge now would be a great time to fish around it. Type of bait is another key to catching blues, try some cut skipjack,shad,etc. Right now with the water temps like they are is a great time to be catching them. Hopefully some of the other experienced blue cat guys on here will chime in.