The final episode of fly-on-the-wall documentary The Cruise Ship was watched by 3.8 million people, according to Princess Cruises.

This was the highest viewing figure for an episode during the four-part series, which centred around the senior team on board Royal Princess in its debut season in the Caribbean.

As a result, the average number of viewers for the four episodes was just over 3 million.

The Cruise Ship was ITV’s highest-rated Friday show outside of the soaps, Princess Cruises announced.