Paddington Arm (Grand Union Canal) | Canal & River TrustThe Paddington Arm is one of London’s best kept secrets. Connecting Paddington to the main branch of the Grand Union Canal near Hayes, the arm slices through West London providing a green corridor enjoyed by both people and wildlife.The Paddington Arm is one of London’s best kept secrets. Connecting Paddington to the main branch of the Grand Union Canal near Hayes, the arm slices through West London providing a green corridor frequented by both people and wildlife. Paddington Arm https://canalrivertrust.org.uk/enjoy-the-waterways/canal-and-river-network/paddington-arm-grand-union-canal