Princess Cruises is offering all passengers huge £800 on ship spend – do this one thing

Meanwhile the offer is also eligible on routes to Europe, Alaska and Japan.

These include a seven-day Mediterranean voyage from Barcelona to Rome (starting at £1,0008 for an interior cabin), a 12-day British Isles round trip from London aboard MedallionClass and a nine-day Japan round-trip from Tokyo.

Looking longer-haul, there is a seven-day Alaska Voyage of the Glaciers cruise from Vancouver, British Columbia, to Anchorage and a 10-day Alaska Cruisetour AAX.

Meanwhile, for those favouriting a Caribbean adventure, there is a seven-day Caribbean cruise roundtrip from Ft. Lauderdale.

Cruise experts at specialist website, Cruise Critic, meanwhile have flagged a room passengers should avoid is one with an obstructed view.