Scientists from many countries and peoples studied the problems of Easter Island, but it just so happened that Soviet people know little about the contribution of Russian sailors and scientists to unraveling the secrets of the island. This book is based on research by authors at the intersection of many sciences, in particular geology, oceanology, archeology, linguistics, etc. Vividly, fascinatingly, at a high scientific level, they set out the most complex problems, outline ways to solve them.