Britons will be able to enjoy cruise holidays once again from next month, No 10 confirmed on Wednesday.
Guidance recommends passengers are double-vaccinated, with most operators not allowing people on to ships unless they have received both jabs.
International cruises will be allowed to re-start from August 2, Transport Secretary Grant Shapps confirmed on Wednesday.
It is understood to only affect ships travelling to or from England while it remains unclear whether Scotland, Wales and Northern Ireland will be changing their restrictions.
The managing director of the Cruise Lines International Association, Andy Harmer, described the announcement as “very good news”.
“The decision to allow the restart of international cruises is very good news for the industry,” he said.
“The success of this summer’s around-Britain cruises has led the way.”
He added: “The cruise industry has worked tirelessly during the last 18 months in collaboration with the Government, health authorities, ports and other industry bodies to develop enhanced protocols that protect guests, crew, and the destinations we visit.
“The industry looks forward to welcoming guests back on board to visit international destinations.”
It comes as ministers agreed England will open its borders to allow US and EU travellers who are fully vaccinated against coronavirus to enter without the need to quarantine from August 2.
Double-jabbed UK travellers do not have to isolate on their return from amber list countries with the exception of France.
Now it has been confirmed US and EU travellers who have had both vaccinations can enjoy quarantine-free travel to the UK.
The decision was made after a meeting of the Government’s Covid Operations committee on Wednesday.
However, US travellers have been advised not to travel to the UK by the Center for Disease Control and Prevention. The US border also remains closed to UK travellers.