You could even bury the trough in the ground so that the turtles can climb up on land, pot some safe plants around the sides,and add other creatures, like frogs. You can buy various decorative fencing, ie., stone wood, brick, etc., from Wallmart. Be extra careful with the fencing, however, as turtles can climb very well.

In regards to fencing, however, I'd be aware, since Florida has recently passed new laws regarding captive, red ear sliders. They must be fenced in, no way to escape. I'm sure this isn't enforced very well and isn't to make you worry. It's just to let you know.

That is, if you have red ear sliders.