There's two at the top of the lift station in the center. They're over this area that appears to be accessible by those floating platform things. I can't figure out how to get there. Any help would be appreciated.

Also, I'd like to know what's in those chests. If they don't contain dalmatians, or anything needed for ultima keyblade synthesis, I won't bother looking for them.

I'll probably find out months before anyone reads this.

There is one that has a piece needed for the Ultima keyblade. You need to lock on to the platform it's sitting on and use Gravity (or whatever the upgraded version is called) on it, then open the chest when it comes down.