I have been painting Seascapes for about ten years now and have become known for my waves.  I actually do paint people too!
I saw these cute little girls playing  and had to include them in this Crystal Cove painting  "Surf Frolic" 8x10 oil on linen

After traveling and painting to Hawaii I am back to my local beach that I know from painting it for about nine years. Every beach has it's own local colors and they can change according to the weather, time of year and  sand or whatever is in to the water.   When painting the sea there are colors that are particularly good for the region. I would not try to use Hawaii colors here.