Whether it is a river, ripples in a pond or ocean waves, this group is about water that is moving or flowing. This would include waves, waterfalls, rivers, streams, creeks, drops, water faucets, etc. If the water is moving, then you can submit it.
I would prefer you don't add images where the water is essentially stationary like still reflections. There should be some feeling of motion. Images that show clear reflections are probably not going to be accepted.
Water should be a major element in the image. I will not accept images where that is not the case.