Boat riding down the intercoastal yesterday, see a huge flock of seagull hovering close to the water but not diving. Ease over close and see a snake swimming across the channel. I hate snakes so I don't get too close but I do watch for a while. It had the diamond markings like a rattlesnake (only seen in pics...did I mention I hate snakes). This thing was fat also. Probably around 5' long. Not too sure, I didn't get that close. Did I mention I hate snakes?