Last Summer we went on Holiday Together. We wanted to see Edinburgh castle. Unfortunately, we… the castle because it was cut.( not visit ) Past simple or past continuous

In this sentence, you should use the past simple form of the verb "to visit." The correct sentence would be:

"Unfortunately, we didn't visit the castle because it was cut."

This is because you're mentioning a completed action in the past. "Cut" refers to the fact that the visit was canceled or not possible, which is also a completed situation.