🌊 How did South Korea build one of the world’s longest sea walls — and how does it compare with the legendary Dutch coastal defenses?

Step inside South Korea’s massive sea wall megaproject and discover the engineering, construction techniques, and enormous logistics behind this record-scale coastal infrastructure. 🇰🇷 From offshore surveying and seabed preparation to massive rock placement, foundations, concrete structures, drainage systems, tidal control, and coastal reinforcement, this documentary explores the Full Process step by step.

🏗️ How do engineers build a giant barrier across open water? How are millions of tons of rock, sand, and concrete transported and positioned with precision? And how can a sea wall withstand powerful waves, tides, storms, and constant pressure from the ocean?

🌊 Explore the machinery, materials, marine construction methods, and engineering challenges involved in reshaping coastlines and protecting land from the sea.

🔥 Watch until the end to see how South Korea tackled one of the most challenging forms of coastal engineering and built an extraordinary barrier on a massive scale.

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