See The Light.
When you are out on the water you are vulnerable to the sun and it is easy to get sun burn. So wear a hat and lather on the protection. But apart from that you can enjoy other types of light whilst you are paddling.
One of my favourites is caustic light. This is light reflected from curved surfaces such as the waves in water. It’s those patterns reflected on the bottom of swimming-pools or on the walls of a cliff next to water. I like the way they dance and flicker like a mobile and transparent version of the shapes on the skin of a giraffe.
When on the water you can seen many types of reflection including sometimes those underwater beams of light that resemble those light rays coming in through a window that seem to make the air solid and dancing with dust motes.