Emergency services were called to the holiday park just after 6:40pm on Wednesday (6 June) but the woman was pronounced dead at the scene.
In a statement, Suffolk Police said the death was currently being treated as “unexplained” but no suspicious circumstances are believed to have taken place.
“Next of kin have been informed and a file will be prepared for the coroner in due course,” said police.
A Center Parcs spokesperson said: “We are deeply saddened by the news of a guest passing away at Center Parcs Elveden Forest. Our thoughts are with her family and friends at this distressing time.