The ship was on the third day of a four-day cruise.

CNN: STORY HIGHLIGHTS

And this being the only ship on the route, none of the ports were swamped with thousands of other cruise passengers arriving for the day, which is often the case in the Caribbean, Mediterranean and Alaska.

BBC: Otherworldly Hawaii, for less

More than 400 passengers on the cruise ship Oriana were confined to cabins due to norovirus during a 10-day Baltic cruise from Southampton in December.

BBC: P&O Oriana