Sometimes a map will help. Or in this case a satellite image.
I originally posted this photo in a different thread, but it's still relevant here.
The Red-X marks the approximate position of the Fairfield Bonnet Creek resort. It's basically adjacent to CBR and Pop Century.
(PC was under construction at the time of the photo)
The blue line is approximately the driveway going from Buena Vista Drive (Disney property) into the Fairfield property and up to the resort.
I hadn't driven up there in awhile, so this is my best recollection.
There is no direct access between the Fairfield Bonnet Creek resort and the Disney resorts (PC and CBR). There is heavy vegetation between the two properties, and I believe there is also a fence. Therefore guests staying at Bonnet Creek cannot plan on just walking over to PC or CBR to catch Disney operated busses.
You can clearly see Bonnet Creek itself. That's the blue water that runs next to I-4 for awhile, then curves up and goes past Old Key West resort.
Labels I used, for those who are unfamiliar, are:
SSR: Saratoga Springs Resort & Spa (DVC resort)
DD: Downtown Disney (mostly it's the West Side that's in the photo)
TL: Typhoon Lagoon waterpark
CBR: Caribbean Beach Resort
PC: Pop Century Resort
MGM: Studios theme park
Not labeled individually, but the Epcot Resorts area includes:
Boardwalk
Boardwalk Villas (DVC)
Swan
Dolphin
Yacht Club
Beach Club
Beach Club Villas (DVC)