Here ya go
quote from MousePlanet Article, "How Far Is it" by Alex Stroup
"So how about the Grand Californian Hotel? Surely it is the best of all possible worlds when it comes to geographic location? Well, it depends. It depends on whether you're going to the park or whether you're returning to the room. Whether Disney's California Adventure park is open or whether it is closed. Whether you are aware of the lesser-known exits or whether you only know of the official routes.
The shortest walking distance between a room in the Grand Californian Hotel and the middle of the Esplanade is about 600 feet. Looking at that route, some of you may be perplexed about how it is done. That is because most people are unaware of a locked exit at the far end of the hotel wing nearest
Disneyland. (link to map:
http://www.gmap-pedometer.com/?r=88766 )
Most guests are unaware of this, however, and since it is a locked door (that you can use to exit but not re-enter the hotel), you can't use it to return to your room. If you had the room with the shortest walk to Disneyland, your return trip through Downtown Disney would be 2,315 feet long (
http://www.gmap-pedometer.com/?r=88770) . Put another way, it is possible for the Grand Californian Hotel room closest to Disneyland to require a walk as long as going out to the Anaheim Fairfield Inn behind the McDonald's on Harbor."
Here's a link to that article, very helpful:
http://www.mouseplanet.com/articles.php?art=mm060329as
Also here is a website that has an actual hotel layout; the link won't paste, but it's <snip>. :
www.*****************/grandcalifornian/grandcalifornianhotel.html . There is a list of pictures on the right sidebar; click on the lobby layout and the guest room layout.