One of Zanna 's joys is presenting destination enrichment talks to passengers on cruises in the Mediterranean , South Pacific (including Hawaii ), South America , Central America , Mexico , the Caribbean , and up the Pacific Coast of North America. Her research and knowledge in paleoanthropology, music, art, legends and folklore throughout the world are brought together in dynamic lectures. A sampling from her diverse talks:

Secrets of the Shamans – How ancient healing practices and philosophies can be useful today.

Pirates, Privateers and Brigands – All over the world, for as long as ships plied the oceans, countries and individuals seeking treasures have raided them. (Mariner history pertinent to destination of cruise.)

Glaciers and Ice Ages of the Western Hemisphere – Theories concerning the ice ages, how glaciers exist and die, and the effect on biodiversity.

Peopling of the Americas - How the Western Hemisphere was peopled and cultures formed, from earliest time until European colonization, specific to destination visited.