Early mornings

There's something magical about swimming and early mornings.  
My Sunday coaching sessions typically start with me getting out of bed at 0500 to get to ready with session plans and on to the pool ready for the first session at 0630.
After the initial conversation with myself about actually getting my feet on the floor, I absolutely love it.
You get the world to yourself and my first two or three clients are out of the water before a lot of people have even got out of bed.
What could be a better way of kicking off a Sunday than to refine your swimming skills Total Immersion style?