It is pretty cool for things that move on land to work a bit when their bottoms are partially submerged...but is this actually...safe? There's a school of fishes right there, even.

inefficient, unsafe, for both the people and environment...

but it looks pretty.

I'm getting Spirited Away vibes, myself.

the new train of water7 from one piece.

Because adding water resistance is a good idea. Also, that's an electric train, it probably costs the city a fair amount of money to be continuously electrifying the water.

Distilled water, maybe?

http://www.youtube.com/watch?v=UzGwUhIXLDk

Not so wistful and sleepy as Spirited Away made it look.