The National Waterways Museum occupies the Llanthony Warehouse in Gloucester's Historic Docks, and it is one of the best industrial heritage museums in England. The collection covers the history of Britain's 2,000-mile inland waterway network — the canals, river navigations, and associated infrastructure that made the Industrial Revolution possible — with particular depth on the West Country's own canal history.
The museum's fleet of historic boats moored outside is as impressive as the indoor displays: narrowboats, a steam dredger, a tug, and a floating exhibit on a converted barge. Interactive displays in the main galleries let you operate lock mechanisms and steer a virtual canal boat. The exhibition on Gloucester Docks itself — how they worked, what they traded, why they declined — is well done and genuinely informative.
The museum is at Llanthony Road, within the Historic Docks complex. Combined tickets with other Gloucester museums are available.