Basically an American take on this Cruise situation can be read here;-Tom https://www.cruisehive.com/new-uk-cruise-advice-page-published-for-resuming-cruises/50063
Lifeboat Drill.....
“And if the ship goes down, we can have no more than three people in the lifeboat. All you latecomers will have to use a tea kettle or something.”
Here is a easier link for our American perspective on the UK regulations for a cruise restart.
https://www.cruisehive.com/new-uk-cruise-advice-page-published-for-resuming-cruises/50063
Roadmap step four – will start no earlier than 21 June. During step four, the government hopes the country has made enough steps in its vaccination process to remove all legal limits on social contact. This includes lifting capacity limits for domestic cruises.
The good news for the cruise lines is that if everything goes well and the government agrees to step four, the vessels will sail full capacity already in June. According to the government’s orders, the cruise lines can legally remove any social distancing measures or even the need for wearing masks.