The monorail to Epcot drops you off outside of the main gate and the pathways to BW and Yacht and Beach Club lead up to the International Gateway. If you have a park pass you can go through the main gate and around to the UK, then exit through International Gateway and walk to the resorts. Beach club is just five minutes or so away and BW is a little farther. If you are more adveturous you can get to Swan and Dolphin or even MGM. There also are boats to all of those locations that leave from the dock at International Gateway.
If you don't have a park ticket you can use, I don't think you can walk around Epcot to get to the International Gateway site. I may be wrong about that, however, and I'm sure I will be corrected if I am.