Features include a Japanese bath area and a sushi restaurant but, more intriguingly, a number of the ship’s bathrooms and cabins now have high-tech lavatories with a menu of options that can be controlled by passengers to involve shooting and pulsating water jets and air dryers.

Each toilet is equipped with a 16-button control pad offering everything from a “wash” and “dry” to the frankly alarming “massage” or “enema wash”.