Japanese sunken garden effects

Quick answer：

Sunken gardens, known as 'kakemono niwa' in Japanese, are a type of Japanese garden featuring a shallow, pond-like depression. These gardens often have stepping stones, islands, and are designed to create a sense of tranquility and harmony. They are characterized by their water features, which can include koi ponds, waterfalls, and fountains. The plants are carefully chosen for their ability to thrive in moist conditions and contribute to the overall serene atmosphere.