In June 2012, a month's worth of rain fell in just 24 hours over parts of mid Wales.
The deluge turned roads into lakes.
In the small village of Tal-y-bont, Ceredigion, 27 homes were flooded as the rivers Leri and Ceulan burst their banks.
After that devastating day, a group of villagers came together with an idea - they would plant trees, thousands of them, to try to reduce the risk of flooding in the future.
Trees and woods play a "vital" role in reducing flooding by slowing down the flow of rainwater, absorbing rainwater and reducing erosion, according to the Woodland Trust.
