I searched through several hundred photographs taken over the past 10 years. I have at least two thousand more, though I won't search through them all. I can use them for future wave paintings, and I will also shoot more photos of waves during the next several months.
I will provide a hint as to my thoughts on the matter - the closer, the better!
* A "morgue" is an artists file of photographs to be used as aids in drawing and painting. My morgue is made up of all photographs I have taken myself.