The Salmon Weir Bridge was built in 1819 to move prisoners across the River Corrib from the county gaol to the courthouse opposite. Today, the gaol is gone, replaced by Galway Cathedral, and the bridge has become one of the city's favourite spots to pause and watch the water.

The Corrib is only six kilometres long, but the second most powerful river in Ireland. For centuries, its salmon runs drew crowds between April and July. Fish could be seen fighting upstream in their hundreds, a spectacle largely ended by dredging in the 1950s. The fishing rights trace back to the Franciscans, who built the weir to trap fish, before passing to the Lynch family and other merchant tribes.

In Irish mythology, the salmon carried all the world's knowledge. VoiceMap's tours follow the Corrib through the medieval quarter, connecting the river's monastic fisheries, its industrial past, and the city built around it.