This study was prepared by marine engineer Dr. Manuel Butler as part of a consultancy under the
supervision and with the contribution of the UNWTO Tourism Trends and Marketing Strategies
Programme and the Regional Programme for the Americas. Numerous professionals from the tourism
and maritime cruise sector have contributed to this publication, with special assistance and cooperation
from the International Maritime Organization (IMO) and from Marine Engineer Rubén López-Pulido,
of the Association of Marine Engineers of Spain. This study would not have been possible without the
authorization to use the statistics provided by G. P. Wild (International) Ltd., Cruise Line International
Association (CLIA) and the European Cruise Council.