Tengchong, a city in Yunnan Province, China, is known for its unique landscape and traditional gardens. The design of artificial rockeries and fish ponds in Tengchong is a blend of natural beauty and cultural heritage. These gardens often incorporate elements like stepping stones, bridges, and traditional Chinese plants. The design principles emphasize harmony with nature, balance, and aesthetic beauty. For specific design details and techniques, one would need to consult professional landscape architects or historical records on Chinese garden design.