Almost every day from when we got to Vegas to the day we went home we swam.  The first night for only an hour but the other days multiple times a day.  Ian on Saturday and Sunday was Jumping into the deep end of the pool, with his life vest on of course.  Sunday he would do all the jumps the others were doing.  He even let Casey throw him into the water.  He loved playing a game where he would hide a toy gun and say "I have a suprise for you" then shoot you.