So I registered the map on my tele rock, and went back in just to pineapple around a bit. I found a portal on the left, just off the visible portion of the map. First couple of times, it takes me back to Orbis, which is where I'd entered. Then it takes me to Henesys.
I'd've assumed that Henesys is the default exit, since I'm not actually entering the map via the town-based portal if I use tele rock. But that doesn't explain why I got back to the correct town the first time I exit after teleporting (the same thing happened when I did it in Aqua Road). Has anyone else played with this? I've tried a few times to see if I ever randomly exit anywhere else, but it doesn't seem so. Why Henesys on the second teleport?