I've noticed that I can build the train along the ground, but if I move the terrain to adjust something and try and bring the terrain back up it brings it up to the tunneling terrain distance leaving a gap under the tracks. I have two suggestions for this. Either make the terrain resolve to the base of the track when not tunneling or give me a ballast object to place into the gap under the track. (you know, the small rocks under most train tracks.) While this does not effect play, it would improve aesthetics. Second, I'm sure this has been brought up, can you allow terrain to come closer to the water rides. right up to the track sides itself would be awesome. Also an aesthetics thing, but would make theme decor easier. Other than that, I have little to add to an otherwise beautifully made game.