Either very sweet, or fetch the bucket!

There is a deep gorge in China and at it's very top, end-bolted to each rockface, is a foot bridge. Alongside this foot bridge, fixed by the same method, is a large linked chain. On this chain are thousands and thousands of locked padlocks. Engraved on each padlock are the names of two lovers, a date and their declaration of love for each other. Once the padlock is locked onto the chain it's keys are thrown down into the gorge. It is said that their bond of love can never be broken until they find the very key for their padlock and unlock it. The locals call it "The chain of eternal love"