Very cool, John. My turtles have to sit atop some old tire structures I have in the shallows. (In all honesty, they were supposed to be elsewhere but I didn't drill big enough holes for them to sink and that's where they ended up) It's funny how turtles come and go. For two years, I had a couple big sliders; now they've moved on--although I can't imagine they'd get fed so well elsewhere. I also have one resident snapper, who gives me quite the stink eye when he comes up to feed. I did have two really big snappers the other day that appeared to be locked in a mighty battle. Then again, they might have just been amorous as I'm not that familiar with turtle lovemaking.