I've seen phosphorus light up the water in Cape San Blas (Bay side) when paddles push through the water, turning the water Lightning-Bug Hyper Green. However, until last night, I've never seen anything of the likes in South Walton. Went to the beach last night around 830pm, at Grayton. The stars were incredible, as the Moon had not yet appeared. Looking down at the sand where the water was washing on shore, we noticed what looked like stars, shining on the sand, but it wasn't reflections. Whatever it was, was glowing in the dark, like stars on the beach. I thought at first, maybe it is little sea shells which are full of phosphorus, because the glow lasted only for a second or two, before it seemingly disappeared under the sand. I trapped one glow in the dark spec, and examined it under the light. It looked like a very very tiny white fleck. I removed it from the light and it was still glowing green. I'm guessing the waves produced enough friction that the little flecks would glow, but when the wave went back out, the glowing stopped. Does anyone have a better idea of what we saw last night? Ever seen this here? It was magical.