Due to the waves pounding so much over the past years, the floor of the Lagoon is actually broken. That is why back in June they discontinued the morning Surf Lessons and the after-hours Surf Parties. Also, the maximum waves were only four feet for the remainder of the year rather than the normal six foot.
The wave pool had to be drained and the bottom completely torn out and be re-built to stronger specifications. The fact thatr it takes time for concrete to properly cure is the major delay reason.