A SINGLE padlock on the Cataract Gorge suspension bridge is a sign of love.
The ``love lock'' is engraved with the words Asha and Bill 26-4-13, however, over time others have appeared on the bridge but then also disappeared.
Some believe the act of padlocking a lock to a bridge and then throwing the keys into the water symbolises unbreakable love.
It is unclear where the tradition started - some sources say China others say Serbia.
However it is made more popular now by tourists visiting bridges in cities around the world, including Paris, Seoul and Brooklyn.
One of the most popular bridges in Paris, the Pont des Arts footbridge, lost a section under the immense weight of the padlocks in June.
It is understood 700,000 locks have adorned the Pont des Arts and other footbridges in Paris over the past six years.
The Launceston City Council declined to comment yesterday.