Puzhi Bao'an

Quick answer：

Puzhi Bao'an, also known as 'stone revetment', is a traditional Chinese landscape gardening technique that involves placing stones strategically along the banks of a pond or river to create a natural-looking, aesthetically pleasing effect. This technique aims to mimic the natural erosion and formation of stone along water bodies, and is often used to enhance the overall harmony and tranquility of a garden.