Astor at Boca da Valeria, Brazil on February 25, 2012. Photo © Stephan Siegert

  Astor at Belém, Brazil on February 19, 2012. Photo © Gilmar Nazaré Guedes Leal

  Astor at Ponta Delgada, Azores, Portugal on December 22, 2011. Photo © António Simas

  Astor at Ponta Delgada, Azores, Portugal on December 22, 2011. Photo © Andrë Moura

  Astor at Funchal, Madeira, Portugal on December 15, 2011. Photo © Jorge Ferreira

  Astor at Valetta, Malta on November 22, 2011. Photo © Brian Crocker

  Astor at Venice, Italy on October 10, 2011. Photo © Bart de Boer

  Astor at Venice, Italy on October 10, 2011. Photo © Bart de Boer

  Astor at IJmuiden, Netherlands on September 9, 2011. Photo © Jan Ramaker

  Astor at Stavanger, Norway on August 12, 2011. Photo © Peter Godliman

  Astor at Lisbon, Portugal on May 13, 2011. Photo © João Loureiro

  Astor at Kusadasi, Turkey on April 21, 2011. Photo © John Watson

  Astor at Malaga, Spain on September 26, 2010. Photo © Rui Agostinho

  Astor at Lisbon, Portugal on September 19, 2010. Photo © João Loureiro

  Astor at Hamburg, Germany on July 31, 2010. Photo © Andreas Raap

  Astor at Portimao, Portugal on September 25, 2009. Photo © António Silva

  Astor at St. Petersburg, Russia on August 31, 2009. Photo © Matko Lucic

  Astor at IJmuiden, Netherlands on September 16, 2009. Photo © Jan Ramaker

  Astor at IJmuiden, Netherlands on September 16, 2009. Photo © Jan Ramaker

  Astor at Gdynia, Poland on September 10, 2008. Photo © 2008 Wlodzimierz Kociecki

  Astor at Funchal, Madeira, Portugal on August 10, 2008. Photo © Edgar Freitas

  Astor at Funchal, Madeira, Portugal on August 10, 2008. Photo © Edgar Freitas

  Astor at Geiranger, Norway on July 23, 2008. Photo © Victor Ross

  Astor at Flåm, Norway on June 14, 2008. Photo © Coen Gonsalves

  Astor at Liverpool, United Kingdom on May 20, 2008. Photo © Peter Roberts

  Astor at Liverpool, United Kingdom on May 20, 2008. Photo © Peter Roberts

  Astor at Katakolon, Greece on April 7, 2008. Photo © Fred Claessen

  Astor at Funchal, Madeira, Portugal on March 22, 2008. Photo © Marcial Fernandes

  Astor at IJmuiden, Netherlands on September 15, 2006. Photo © Bart de Boer

  Astor at Bremerhaven, Germany on August 31st, 2001. Photo © Bart de Boer