I agree. You can get an old out-of-print guidebook that shows all sorts of trails leading into Supai, and also a lot of trails to the rim, etc., from Supai. But they don't want you on those trails. My pals got caught one time trying to hike up to the rim from the cemetery that is between Supai and Havasu Falls. They were lucky not to have to pay a fine.
There is a point of no return unremarked at the time in most lives. Graham Greene The Comedians
A clean house is a sign of a misspent life.