Montage shows gridlock on the River Thames

This picture shows just how busy the Thames has become.

The montage of all the boats which passed between Tower Bridge and London Bridge in a single hour also shows the many different types of river traffic.



Among the 56 vessels pictured are speedboats, fishing boats, lifeboats, container barges and a range of tourist cruisers as well as HMS Belfast, which is permanently moored.

The image was taken by photographer Alisdair MacDonald, who set up his camera on London Bridge between midday and one o'clock and photographed every vessel that passed in the hour.

He then created this composite image.