Soft soled shoes--not black soles.
Sunglasses
Anything you want to eat or drink.
Cooler for your fish.
Hat and suntan lotion for protection from the sun.
Jacket or sweat shirt since it is usually cooler out on the lake.
If you are suseptable to motion sickness you should take Dramaine or Bonine and this should be taken "hours" before departure. I suggest you take one the night before the trip and then when you get up in the morning to insure that it is in your system by the time of departure.