It's amazing what a little research can do. I spent a few hours this afternoon, learning a bit more about turtles...Harold and Maude. Yes it's official. The little one is Harold and of course, Maude is the old lady. Anyways, had to make some modifications on their habitat:
That's right! A tunnel, or burrow. I had to create three different microclimates in the tank.
You can see here, that Maude liked a lot, she even went for a bath.
Well, even the other pet of the house shows some interest...