CN is compact, but you can still get plenty of exercise walking along the entire strip of beach, swimming, and of course participating at the gym. We liked the close proximity of buildings, because we went with two other couples. While we had rooms in separate buildings, that didn't stop us from visiting back and forth (and on one morning, we all had out breakfast together, with champagne\orange juice). The beach was beautiful, very clean, and the water was extremely warm (pretty much like bath water - which is amazing for an ocean). Restaurants were great - especially the asian restaurant. If you do, make sure to sign up for the kitchen tour with chef. It was really fun.
Our recommendation for room block - building 6. Great view of the ocean, and unobstructed by palms\hedges. Right beside the main pool, so you could go for a late night swim, or close enough to take a run over to the Au Naturel side to go in the hot tub at night.
FONT="Verdana"]David and Jeanette, Nova Scotia[/FONT][/FONT]