Yes Jean is right. It's a bit early for the Myriokefala pilgrimage, which actually culminates on September 8 when Orthodoxy celebrates the birth of the Virgin Mary - whose "miraculous" icon in the village church is the focus of the event.
However, I now have a peg for my Myriokefala story which I may have told here before, but can't find in the archives.
Years ago, staying with the Zografakis family in Arghyroupoli, I noticed a stream of people walking purposefully south - some carrying small bags, one or two barefoot.
When we learned that was the pilgrimage to Myriokefala we went up by car to have a look and it was as Phil says - quite a big affair with a market, and rest and first aid facilities for the walkers, some of whom had slogged all the way from Rethymno to worship at the church of the Panagia*.
That night my husband said he fancied walking the stretch of the trail from Arghyroupoli, and would get up early to do so. When I woke up next morning I thought he was putting on his boots but it turned out he was taking them off, having walked there and back in no time at all and found it an unexpectedly powerful experience.
I don't know how many kilometres it is between the two villages but it's quite a schlep, and uphill all the way. He said it was unlike any of our many other walks in the Cretan mountains - effortless, like flying, like being carried along. (This from someone not normally given to fanciful ideas, and with absolutely no time for miracle-working icons).
When I tried to explain that in my halting Greek to our hostess Lefteria, she wasn't surprised: it's well known, she said, that bare feet doing that walk are miraculously undamaged.
Possibly johnincrete's Agios Fanourios pilgrims also believed themselves under divine protection -but more likely they assume that local traffic anyway, will know what's going on, and make allowances for them.
* The church is rather special - well worth a visit at another, quieter time.