OM's pioneering first ship, Logos, was purchased in 1970. Over a 17-year period, more than seven million visitors came to Logos during 250 ports of call in 102 countries. In 1988, Logos ran aground on rocks off Tierra del Fuego, Chile, in atrocious weather conditions. Though the ship could not be saved, not a single crewmember was lost, or even injured!

Later that year, the former Antonio Lazaro became Logos II.