Of course, it is more than usual for hill-gardens to have water in the form of a stream and pond. But there is another style known as kare sansui, or dried up landscape. Rocks are put together for the waterfall and for its basin, and the shape of a winding stream and a pond, to which it is joined, are formed with every detail. However, instead of water, gravel and sand are strewn to suggest water. It is often so artfully executed that one cannot help feeling the presence of water. Such a device is not only applied to hill-gardens, but to the level gardens as well. An area of sand is most effectively used to indicate water, and many a famous garden still exists to-day in old temple compounds merely with rocks and sand, sometimes with a few trees and shrubs.
[The dry landscape style (karesansui, karesenzui, kosansui, or kosensui ???) originates from zen temples. These have no water and few plants, but typically evoke a feeling of water using pebbles and meticulously raked gravel or sand. Wikipedia 2007)
