You made me think of my great-grandmother. She died over 30 years ago. For some reason your riddle made me think of one she asked me when I was a small boy.
What goes over the water, on the water, and under the water but never gets wet?
An egg inside a duck.
Not a real funny riddle, but a pleasant memory. I can remember the moment vividly: where we were, what the ocean smelled like, everything. Funny how memory works. Thanks.