This is what I post in my review for my recent stay:
"Every time we visit Marriott in Cayman, the beach become even smaller!!! Look at the beach pictures here on Tripadvisor from 5- 10 years ago - it was much wider! Now, it become so narrow that in some spots only two rows of chairs can be put on the beach and the front row will be almost in the water! And this create lots of space issues with the beach chairs as people are almost seating on top of each other. We were very disappointed with the beach! I don't know if management is planning to do anything about it, but even though we love the hotel, I mainly come to Cayman for a beach, so next time we will look to stay elsewhere - condos, Westin or Ritz."
I did sent an email to the management, but they never responded.