I just moved into some of the new mountain housing in Arrana. It's beautiful up here. Just as remote, or even more so, than the treehouse regions of Arrana. But beautiful. I also found a DNA spot on Senaga Siren, which is one street up from where I live. It's about as far away as you can get from Groddle. (I don't think we're in Groddle anymore, Toto)
Edit: I didn't mean to imply by the above that the treehouse areas of Arrana aren't beautiful as well, though that's how it reads, kinda.