Its a very short drive, but definately not a walk. We just returned from a stay there and after one night switched our stay to the Caribean Beach Resort. . . the Marriott seemed too much like a convention hotel and not for us. Plus the pool bar closed at 8pm, not alot of people out and about, no one swimming later, and our hallway smelled musty.
Not at all what I had expected, stayed there 20 years ago and LOVED it.