Hey Sonietta,
Looks like we both are kind of in search of a similar solution or implementation. Even i have been searching around the community and youtube about if and how people would have implemented city-tours etc.
One interesting one that i have come across which might not solve your issue but might be a good pointer to look at is
Lexington by Foot and Phone - Showcase - Glide Community (glideapps.com)
At this point i would leave it to the Guide gurus to answer your query on availability of such an option for path ( which for now i have bumped into yet ).
-Shiv