We just had a recent post on pool hopping at the Poly. They had no problem pool hopping to the Poly. They were just advised by the guard that they should have used WDW transpo to get there and not park at the hotel.
Thanks....seems like an easy thing to do if you are at the parks for day.....skip out of the MK in the afternoon, head over to the Poly via the monorail, swim a bit, and then dryoff, change back and go to Chef Mickey's for the evening....