Chase some flathead on soft plastics. Plenty of ground up that way - sandbanks around the river mouths - if they have water flowing over the bank and down a drop off even better. Reasonable weight jig heads to keep it near/on the bottom. Cast out, hop it back. The type of plastic doesn't seem to matter too much. Some guys have favourite colours - personally pink would be mine but they are gluttons and will have a crack at just about anything landed in front of them. Watch the spikes on the sides of the head.