But now a health and safety body, which was set up by two rival cruise lines, says he believes cruise ships are just as safe as other holidays on land.
The advice has been put in place because of the pandemic and is based on medical advice from Public Health England (PHE).
The FCO added: “The government will continue to review its cruise ship travel advice based on the latest medical advice.
“If you have future cruise travel plans, you should speak to your travel operator, or the travel company you booked with, for further advice.
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“The Foreign & Commonwealth Office continues to support the Department for Transport’s work with industry for the resumption of international cruise travel.”
However, co-chair of the Healthy Sail Panel Dr Scott Gottlieb said that ships could be seen as having a “protective bubble” if they put the correct precaution and measures in place.
The panel has been set up by Norwegian Cruise Line Holdings and Royal Caribbean Group.
The panel is also co-chaired by former Utah Governor Mike Leavitt, who was also Secretary of the US Department Health and Human Services along with other professionals in the fields of public health, infectious disease, biosecurity, hospitality and maritime operations.
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Dr Gottlieb told Travel Weekly: “We’re trying to come up with a set of measures that can be adaptable in a high prevalence environment as well as the future lower prevalence environment where [the virus] will continue to be a threat but, hopefully, a much lower threat.”
He continued: “In some ways, you have exquisite control over the environment… who gets into the protective bubble, and what you are doing in the bubble.”
“Could taking a cruise potentially be a safer way to vacation in a COVID environment than going to London?
“I think it might,” he added.
Cruise: The FCO are currently advising “against cruise ship travel at this time”
The US Centers for Disease Control and Prevention (CDC) issued a no sail order back in April for all cruise ships with more than 250 passengers and crew operating in US waters.
The order was expected to stay in place until the deadly virus is no longer labelled a public health emergency.
The CDC may extend the order even further if 100 days from the official start date of the order (April 9) coronavirus is still seen as a public health emergency.
Most cruise lines have decided to voluntarily pause their voyages.
International travel post-lockdown
Many cruise lines are also facing port closures, travel restrictions and a lack of financial support.
Carnival Corporation recently announced it will be selling 13 ships to weather the coronavirus storm.
The company sold one ship back in June.
The 13 ships represent an almost nine percent reduction in capacity.