The local police in the French bordering town of Gaillard are appealing for anyone who may have had a bicycle stolen before March this year to get in touch.
They discovered a haul of around 30 bikes abandoned on the banks of the Aarve river. The police say many are electric and some are very valuable.
They’ve tracked down the owners of half of them - but around 14 are still unaccounted for.
If you had a bike stolen before March, the municipal police in Gaillard would like to hear from you.