They open today, after some delays. There was a rare rain storm during construction that moved things back a bit.
The company overseeing the project is The Sand Sculpture Company, like them on facebook for access to hundreds of pictures, some of which I've posted here - https://www.facebook.com/sandsculpturecompany
Read more about the festival at Kuwait Times - http://news.kuwaittimes.net/sandtastic-worlds-largest-sand-sculpture-park-kuwait/
The festival's facebook page - https://www.facebook.com/remalfestival
A video (in Arabic) with great shots of the sand sculptures:
More on the construction of the sculpture from The Nelson Daily - thenelsondaily.com/news/selkirk-college-instructor-helps-bring-1001-arabian-nights-life-through-sand-28024
And from Victoria News - http://www.vicnews.com/news/229019141.html