RE: Water landing
Strangebrew-
Happypappy gave you advice about take off. He was spot on and this is where you are more likely to have problems. If you try to take off too quickly, you are likely to stall and put it in the drink. Ask me how I know. Let the plane build up plenty of speed before gently pulling back on the stick. Give yourself plenty of room for lift off. You've got a lot more weight underneath than when on land.
Have fun!