(#jdk2qma) They tried to claim it was all over the news and their website!

I went and looked, the History of Sunshine Castle had a single paragraph towards the end:

In January 2021 the difficult decision to close several of the original Castle Buildings due to age and stage – saw the Sunshine Castle enter a new era of offering authentic photo opportunities of a Castle ruin in combination with a re-routed and re-priced Mini Tour and Treasure Hunt.