I backed into it. I saw someone else's post a while back asking for a map for Cypress Harbour and a kind TUGger sent out a link to a map for that resort at my-vacationclub.com. I thought that there would probably be other resort maps out there so I just replaced the CH (which appears twice) in the URL with GV and up popped the map.
This appear to work for most, but not all, Marriott resorts.
Dick Taylor