The New Dutch Waterline is a historic defense line in the Netherlands, built in the 19th century. It stretches approximately 85 kilometers and was designed to protect the country from invasions by flooding the surrounding areas. The waterline includes a series of forts, dikes, and canals, showcasing innovative military engineering of its time. Today, the New Dutch Waterline is recognized as a UNESCO World Heritage site. It attracts visitors interested in history and engineering, offering opportunities for hiking, cycling, and exploring the well-preserved forts and landscapes. The site reflects the Netherlands' unique relationship with water management and defense.