We have never been on Regent before, and made the choice about 6 weeks before sailing on the assurance that mask wearing was discretionary throughout the ship, due to Regent’s advanced air circulation/ventilation system on board.
This proved to be wrong on receipt of an email that due to sailing in EU waters, COVID rules were in full operation on board. Bad Start! No cancellation possible!
Nonetheless we looked forward to the luxurious facilities and food quality so widely advertised and supported by reviews.