For those who are interested:

"Towel Card

Present this card at the poolside Towel Hut in exchange for a resort towel.

Towels MUST be returned to the Towel Hut and your Towel Card will be returned.

Towel Cards must be given back at the time of check-out. Non returned cards will incur a charge of $25 added to your hotel account.

For your safety, please review pool rules posted by the pool at each pool location."

BTW, the casino is completed...
(...but not open)

JB