Japanese leisure landscaping, also known as 'niwa-nichi' or 'Japanese-style garden design', is a traditional art form that emphasizes harmony between nature and humans. It often incorporates elements such as rock formations, ponds, and a variety of plants, creating a serene and peaceful environment. The design principles focus on yugen (mystery), fukinsei (asymmetry), kei (proportion), seijaku (subtlety), and shakkei (borrowed scenery). This style of landscaping is highly valued for its aesthetic beauty and tranquil atmosphere.