One of the locations used as Boston, Glasgow’s Kelvingrove Park can be seen in the Outlander season 3 episode, ‘Surrender’. It s here that Claire pushes Briana in her pram over the bridge, passing a man who is playing the bagpipes.
Kelvingrove Park is a popular public park in the west end of Glasgow. Straddling the River Kelvin, the park is overlooked by the University of Glasgow. As well as having hosted many significant events over the years, such as the 1901 International Exhibition and the 1911 Scottish Exhibition, it is known as a refuge for local bird life.
If you click on the above image you can see the University of Glasgow, used as Harvard, overlooking the park.