Since ancient times, formal gardens have offered a distinctive expression of Japan's traditional aesthetic. Often featuring lush greenery, bodies of water and seemingly random arrangements of rock, these gardens can be viewed as nature in microcosm. Our reporter is Joseph Cali, a designer who has published books on Japanese gardens. On this edition of Journeys in Japan, Joseph visits Shikoku. He discovers the beauty of the natural environment - and the way it is reflected in two very contrasting traditional gardens.