Minerva at Portsmouth, United Kingdom on July 6, 2011. Photo © Gary Davies

  Minerva at Naples, Italy on May 21, 2011. Photo © Carlo Mirante

  Minerva at Kotor, Montenegro on May 14, 2011. Photo © Danijela Paljusic

  Minerva at Halong Bay, Vietnam on February 5, 2011. Photo © Clive Harvey

  Minerva at Djibouti on December 11, 2010. Photo © Brian Crocker

  Minerva at Aqaba, Jordan on December 7, 2010. Photo © Brian Crocker

  Minerva at Greenock, United Kingdom on August 18, 2010. Photo © Thomas Duncan

  Minerva at Akureyri, Iceland on August 6, 2010. Photo © Brian Crocker

  Minerva at Akureyri, Iceland on August 5, 2010. Photo © Kees van Garderen

  Minerva at Lisbon, Portugal on June 9, 2010. Photo © Ruí Pais

  Minerva at Funchal, Madeira, Portugal on November 1, 2009. Photo © Edgar Freitas

  Minerva at Funchal, Madeira, Portugal on October 31, 2009. Photo © Edgar Freitas

  Minerva at Dover, United Kingdom on August 22, 2009. Photo © Matko Lucic

  Minerva at Gibraltar, United Kingdom on June 17, 2009. Photo © Louis Robba

  Minerva at Ponta Delgada, Azores, Portugal on May 15, 2008. Photo © António Simas

  Alexander von Humboldt at Boston, Massachusetts on September 16, 2007. Photo © Gary Marshall-Gleghorn

  Alexander von Humboldt at Boston, Massachusetts on September 16, 2007. Photo © Gary Marshall-Gleghorn

  Alexander von Humboldt at Funchal, Madeira, Portugal on May 1, 2005. Photo © Rainer Rosenow

  Alexander von Humboldt at IJmuiden, Netherlands on May 12, 2005. Photo © Frans Baud

  Saga Pearl at Buitenhuizen, Netherlands on June 21, 2004. Photo © Bart de Boer

  Saga Pearl at Buitenhuizen, Netherlands on June 21, 2004. Photo © Bart de Boer