The Sacred Coca Plant, an 8,000 Year History & The Fight to Liberate It.

Wade Davis is a writer, photographer, and filmmaker whose work has taken him from the Amazon to Tibet, Africa to Australia, Polynesia to the Arctic. Explorer-in-Residence at the National Geographic Society from 2000 to 2013, he is currently Professor of Anthropology and the BC Leadership Chair in Cultures and Ecosystems at Risk at the University of British Columbia. Author of 23 books, including One River, The Wayfinders and Into the Silence, winner of the 2012 Samuel Johnson prize, the top nonfiction prize in the English language, he holds degrees in anthropology and biology and received his Ph.D. in ethnobotany, all from Harvard University. His many film credits include Light at the Edge of the World, an eight-hour documentary series written and produced for the NGS. Davis, one of 20 Honorary Members of the Explorers Club, is the recipient of 12 honorary degrees, as well as the 2009 Gold Medal from the Royal Canadian Geographical Society, the 2011 Explorers Medal, the 2012 David Fairchild Medal for botanical exploration, the 2015 Centennial Medal of Harvard University, the 2017 Roy Chapman Andrews Society’s Distinguished Explorer Award, the 2017 Sir Christopher Ondaatje Medal for Exploration, and the 2018 Mungo Park Medal from the Royal Scottish Geographical Society. In 2016, he was made a Member of the Order of Canada. In 2018 he became an Honorary Citizen of Colombia. His 2020 book, is Magdalena: River of Dreams, Knopf, 2020, is a tribute to his love for Colombia, of which he is an honorary citizen. His latest book, Beneath the Surface of Things: New and Selected Essays (Greystone, 2024) has been termed ‘A timely and eclectic collection from one of the foremost thinkers of our time, “a powerful, penetrating and immensely knowledgeable writer” (The Guardian).

Andrew Weil, M.D., is a world-renowned leader and pioneer in the field of integrative medicine. Combining a Harvard education and a lifetime of practicing natural and preventive medicine, he is the founder and director of the Arizona Center for Integrative Medicine at the University of Arizona, where he is a clinical professor of medicine and professor of public health. A New York Times best-selling author, Dr. Weil is the author of 15 books on health and wellbeing, including Mind Over Meds: Know When Drugs Are Necessary, When Alternatives Are Better, and When to Let Your Body Heal on Its Own; Fast Food, Good Food; True Food: Seasonal, Sustainable, Simple, Pure; Spontaneous Happiness; Healthy Aging; and Eight Weeks to Optimum Health. Dr. Weil is a frequent guest on talk shows and the lecture circuit. He is the editorial director of DrWeil.com, the leading online resource for healthy living based on the philosophy of integrative medicine. He is also a founder and partner in the growing family of True Food Kitchen restaurants. In partnership with Seabourn and The Onboard Spa by Steiner, his “Spa and Wellness with Dr. Andrew Weil” mindful-living program is offered on all of the Seabourn cruise ships.