Alice has written a super overview of The PATH. Here it is:
Thanks to its 27 kilometers of shopping arcades, the PATH is the largest underground walkway in the world. It easily leads to the downtown area of Toronto, and it's linked to several entertainment attractions, and five subway stations. What's more, because this complex is totally weatherproof, you can always enjoy a wide range of shops and services without worrying about the weather or the season. Finally, despite its size, it's nearly impossible to get lost strolling around the PATH because there are many signs that show you where you are and where you need to go. In fact, every letter forming the word "PATH" has its own colour leading into one of the four cardinal points. No doubt you'll enjoy your visit!
