Managed to acquire an old water trough 4 metres across and about 1 metre deep
Want to make a simple Turtle pond so will just create a floating island for the turtles to get out of the water,
Used some close cell foam to create a platform
One of those cheap storage containers from M10 to create a dirt area so they can lay in.
Painted it and tied to sides to keep it fairly central in pond so the turtles can't climb out