Did some digging and found this link, some of the statements I disagree with, however the did note the following, which I remembered reading elsewhere, I am just trying to find it from a more reputable source, if I do I will post the link for you:

"Monitors are natural burrowers and will create humid burrows that helps keep them hydrated. Misting the cage daily or even soaking them does not keep them hydrated. They do not absorb water through their skin or vent like some other reptiles, the only way to hydrate themselves is by breathing humid moist air, through the eyes and by drinking water."

http://www.everythingreptile.org/res...or-rescue.html