Resort Day Passes - Mariott take walk ins?

I am coming to San Juan on Aug 4th and missed booking the Mariott from Resort a Day. Do they take walk-ins.

If not, My wife and I want to go to place with a pool. Are there other options?

Call the property. As far as I know, properties that offer "day passes" not booked through third parties accept walk ins but might be limited to a certain number a day. So don't go blind and risk being told they have none available when you get there.

There are two other places that offer similar services and amenities but, as a local, I'm not supposed to name them. So do a search of "San Juan beach day package" or something along those lines and you'll find a few options. Good luck!!