Down here now, drove by Maya Luum and it had an official notice up that it was closed. Anyone know the scoop, or if the beach is still available for au naturale use?

We see clausarado notices frequently. Not just in Tulum but all over. From what people are saying Maya Luum is still accepting visitors.

It is now.
From their Facebook site:
...Friends followers of Maya camp luum, I send greetings to all, that the camping is closed for remodeling until further notice...
Now what?

During low season it's not uncommon to close a resort/hotel. Usually for "remodeling".

I hope it's just one of those "Septhambre" things. <img src="http://www.traveltalkonline.com/forums/images/graemlins/Grin.gif" alt="" />

More from their FBook post:
Estaremos publicando, donde sera la siguiente locación. Por el momento , les pedimos mantengan en contacto con nosotros y le enviaremos nuestra nueva locación.

My Spanish leaves a lot to be desired but...
We will publish (post) where our next location is. For now, we ask that you maintain contact and we will send (message) our new location.

I'm keying on the phrases, siguiente locación and nuevo locación.
Still wondering if there is something completely different being built there?