The fundamental tenets of a walking tour are pretty simple: Walk around an area, and a guide (either recorded or in person) tells you relevant facts and the occasional amusing anecdote about the place you are seeing. This is not that kind of walking tour.
Ancient Shrines and Half Truths is a self-guided audio walking tour, but only some of what is said is factual. The rest is completely made up, amusing, and a bit mysterious. The tour is hosted by a 'cultural insider' who will point out areas of interest and tell stories about what you're seeing.
You'll need your headphones and your smartphone, but don't expect to believe your ears.