Since I can't find it anywhere else on the 'net, in the game Opoona, the Tokione Moon Forest Hotel is found as follows: When you get off the pod transport and go out into the main aisle (Tokione B1 Center Aisle, where the entrances to the Great Racetrack is) go to the map in the middle of the aisle. 180 degrees from the map, i.e. right behind it, is a nondescript door. Go through that door, and you'll be on a glass walkway around the museum, which you can't get to from the museum proper. Follow that around, go through the door, and there you are at the hotel.

Took me half the afternoon to find the bloody thing...