This book provides an overview of alternative investment opportunities related to demographics, fisheries, and water. It is divided into three parts. Part I discusses investing in longevity and mortality risk markets as well as reverse equity transactions related to life insurance. Part II examines investment opportunities in bluefin tuna fisheries and the Tsukiji fish market in Tokyo. Part III explores the investment implications of issues relating to water scarcity, water treatment technologies, and the geopolitics of water. The book is intended to introduce global macro investors to esoteric and overlooked investment areas.