Originally Posted by
elitelite
I don't know if you can shuttle between them........with the day pass.
Its not a day pass, its a one time pass. Once used it goes poof, even if you leave the club to get a bite, you actually may need another to get back in (provided the matron doesn't remember you... or becomes a dragon).
Now to the OP:
If you feel like a shower after the 10 hours in Y, go to Freshen up! in the intl terminal. Here is a review with pictures:
http://www.travbuddy.com/Freshen-Up-v373177