Banpo Bridge Moonlight Rainbow Fountain

This guide to the Banpo Bridge Moonlight Rainbow Fountain in Seoul opens with Jamsu, the submerged lower deck engineers finished in 1979 and let the Han River swallow every monsoon season. It follows the 2009 project that turned that same flooding logic upside down, bolting thirty-eight pumps and hundreds of nozzles onto the bridge to shoot river water back into the night, dyed in color and timed to music. Stand by the river after dark between April and October to catch it.