This book is about japanese ecosophy. The author shares his understanding of the feature and components of japanese thinking and lifestyle in relation to nature, environmentalism and green practices through his life experiences as a frequent traveler to Japan, and as a reputable scholar with special interest in water and environmental sustainability. Since this book is a “traveler’s notes”, the approach that the author has been casual, personal, sometimes judgmental and less philosophical. This is a personal narrative of events, stories, conversations and anecdotes on japanese value, attitudes, habits, characters and culture towards environmental sustainability.