Japanese sunken garden landscape image

Quick answer：

A Japanese sunken garden, also known as a kare-sansui or rock garden, is a traditional Japanese garden design that features carefully placed stones, raked sand, and often a small pond or water feature. This type of garden is designed to evoke a sense of tranquility and the beauty of nature. It typically incorporates elements such as moss-covered rocks, stepping stones, and sometimes miniature trees or shrubs. The layout is simple yet profound, with a focus on natural harmony and minimalism.