The Royal Iris, originally named MV Mountwood, was constructed in 1950-1951 by William Denny and Brothers Shipbuilders in Dumbarton, Scotland.

Commissioned by the Wallasey Corporation to serve as a passenger ferry for the Mersey Ferry service, operating between Liverpool and the Wirral Peninsula.

First of its kind, being the first non-steam powered ferry to operate on the Mersey River. The Royal Iris was powered by diesel engines and had a capacity of over 2,000 passengers. Its sleek and modern design, with strong Art Deco influences, made it an iconic vessel of its time.

Serving as a passenger ferry for several decades, she became known for her comfortable seating, spacious decks, and panoramic windows that offered stunning views of the Mersey River. In addition to its regular passenger service, the Royal Iris also played a significant role in the music scene of Liverpool. In the 1960s, it became a popular venue for rock and roll concerts, hosting performances by well-known bands such as The Beatles, The Who, and Jerry Lee Lewis. These events, known as the “Riverboat Shuffles,” attracted large crowds and contributed to the vessel’s cultural significance.

However, as the years went by, the Royal Iris started facing financial challenges and was eventually decommissioned in 1991.

Although plans were made to convert the ferry into a floating entertainment venue, they did not materialize, and the Royal Iris fell into disrepair. Today, she rests on the banks of the River Thames near the Thames Barrier in London.