Walkers, cyclists and birds now share Anyangcheon. Flowers and lighting can make it look like an old natural park, but factories and rapid urban population once sent industrial and domestic wastewater into this metropolitan stream.
Recovery requires continuing management
Sewage treatment, pollution controls and restoration helped fish and birds return. The phrase “a dead river came fully alive” is too simple: rainfall, upstream discharge and maintenance still change conditions. One landscaped section cannot represent the entire watershed.
The park becomes a river during heavy rain
Flat paths below the levee are designed to accept water. Barriers, water-level marks and bridge clearance show that the recreation area also performs flood control. Never enter when rain warnings or closures are active, even if the water appears low.
Follow separate walking and bicycle signs, avoid sudden stops and do not feed wildlife. After rain, expect mud and damaged facilities. International visitors should see the stream not as a completed environmental miracle but as continuous negotiation among industry, housing, ecology, commuting and flood safety across several cities.