Most of my beach images are shot in twilight or just as the sun breaks the horizon the other day I stayed a little longer when I saw the moss on the coquina rocks glowing from the early morning light. This was taken from my local beach which has given up some really nice images lately.
Canon 6D, 16-35 f/4 at 16mm, 1/4 at f/13, Manual Made, evaluative metered, ISO 400, a 5 stop ND and polarizer help slow the shutter speed down for me to get the silky water I had to increase ISO because I really needed a 3 stop ND to go with the polarizer, single exposure and usual luminosity processing with a dash of Nik here and there.