I fished there about 10 years ago on the Indian River. I just fished off the dock behind the house we were staying at. We caught snook, redfish, sea trout, tarpon and a host of various other pan type fish. Did really well on topwater lures for snook. I remember using whole fiddler crabs that I caught along the muddy banks tidal line for bait. Fish really liked them and they were free! Had a great time. I saw dolphins and manatees every day there in the water.
You will have a good time and weather was nice end of March begining of April!