Last night the music was too loud (darn kids) so I wandered down to the dock. They had a bright light shining into the water, and I saw some fish floating around. I watched them for awhile. I had my legs dangling over the side until I decided that that was a horror film cliche, and it would be better to be safe than sorry. And then a large manta ray swam right under me.
After awhile there was a big splash to my left, at the edge of the light. I saw that a large group of fish had leapt out of the water in all directions. And looking at the area, I thought I saw a small triangle of fin floating just above the water. Shark? Well there goes another cliche.
But after half an hour of watching, I think I determined that it was just the manta ray floating close to the surface. It’s flapping bits would go above the waterline briefly, looking like the stereotypical shark fin.