I am looking for ideas of how to light the spa area of my pool. Specifically, I'd like to light the spillover area where there is a waterfall into the pool below. I was thinking about vertically mounting a rotatable hardscape light on the boulder on each side of the spillover or using a submersible flat and thin fixture along the waterline of the pool if such a thing exists. I'm open to any suggestions and don't know what I don't know. I would also welcome any suggestions regarding how to light the area around the spa itself. The length of the spillover area is about 90". Thanks for any suggestions/guidance.