In October of 2022 we had an embarkation port change two months before sailing. The embarkation port moved to Rotterdam from Amsterdam. The reason is the lock of IJmuiden. Water level was too low and the lock drastically reduced the number of ships that could enter. Lots of scrambling to make changes. Some passengers changed their hotel to Rotterdam. We kept our rental in Amsterdam the 3 days prior and secured transportation to Rotterdam the morning of the cruise. Just goes to show, anything can happen.