The ones named "Sands*" are pictures of that hotel/timeshare groups' latest (as of 2002) vacationing spot, the Royal Sands. I think that one was completed in 2001, but don't quote me on that.
Oh, and those pictures were all taken with [link|http://lwf.ncdc.noaa.gov/img/climate/research/hurricanes/isidore_pg.jpg|Hurricane Isidore] parked right on top of the Yucatán Peninsula. You can see where the eye of the storm is. Looking to the right of that, you'll see an island off the east coast of the peninsula. That's Cozumel. Cancun is directly north of Cozumel, at the little jaggy tip that is the easternmost part of the mainland. It's gorgemous even during a hurricane.