Washed up

The water was washing the sand as the tide came up and went back out. I was watching my sister as she was quietly playing in the sand looking for little seashells. My parents were eating their lunch which they had made at the house before we had left. My parents thought it was good that we go away for a weekend because they are always so busy. I can't remember the last time we did something like this, when they told me I thought they were sick. Now that I am here I think it is a good idea. My sister loves the water, I like to watch her play in the sand and touch it softly. When I turned around to go back and get my drink, when I came back she was gone.