Hi @rosiee, Welcome to Connect. Thanks for sharing your Mayo experience. I like the Rochester Mayo campus also. The subways and skyways are probably more popular during the winter when it's not so nice to walk outside. It can be a little confusing in the skyways and subways but I think there are directions posted in most of the areas that are linked together.

Have you seen the skyway and subway maps? - https://mcforms.mayo.edu/mc1600-mc1699/mc1663-55.pdf