The Sub Crawl

Glasgow has a single line subway which loops the city with 15 stops. There's an unofficial challenge called the Sub Crawl which is a pub crawl where you travel to 15 different pubs using the subway. Sometimes this means being able to see the next pub you are going to visit as you leave one pub but instead of walking to it, walking away to the subway station, getting on the train to the next stop and walking back to the pub you saw 10 minutes previously!