I fixed the terrain editor "File > New". It loads this terrain then to help people getting started with level creation. We still need to hide it from the level selector...
You are going to hide it? I kind of like it, reminds me of one of the Easter islands, and it is good on the frame-rate and such, I don't suppose you could just keep it in the level selector?
I mean time will tell if it's a realistic size to aim for, initial testing seems good though and worst case would probably just be more water. White D15 on the second closest hill on the left for scale: