Dont go to Corpus to fish. Go over to Port Aransas and fish from the jetties or charter a boat. Dont get on the ScatCat or the Warfcat they are huge Party boats and not that much fun. Find a smaller boat if you can. If you get a chance stay down in a city called Rockport which is not to far from Corpus and a hell of lot prettier and eat at a place called "The Fisherman"
Good luck
Should have been here a year ago and we would have gone down to the Steamboat in Austin
