MV Free Enterprise III was a Ro-Pax vessel built in 1966 as a cross-channel ferry, operated by Townsend Thoresen mainly on the Calais and Zeebrugge routes from Dover.

Like many of the other Townsend fleet, The Free Enterprise III was designed by naval architect Wallace James Ayers.

[5] In 1984, Free Enterprise III was sold to Maltese owners, Mira Shipping Line, Valletta, and renamed Tamira.

Renamed Mona's Isle, the sixth vessel in the company's history to bear the name, she entered service following alterations which saw additional accommodation added.

Suffering engine problems in June 2004,[6] she anchored in the Red Sea and was subsequently abandoned as a wreck 35 km south of Jeddah.