An interesting thread for me. I did this walk in August. This was the first time in several years, and I had some difficulty when I first entered the pine forest.
But let me start from the beginning. I'll get to Kavros in a bit.
On this day I started from Loutro, walked to, and up, the Illingas gorge to the Timios Stavros church. This was the first time in several years I had done this walk as well, and I had forgotten how interesting and pleasant it is. The first bit of the Illingas gorge, just after leaving the road, is boring. But once the gorge narrows, I enjoyed the walk.
From Timios Stavros I went up the eastern side of the gorge towards Mouri. From the cistern there were a few markings (red dots, cairns), but they soon ended - or at least I was unable to follow them. For most of the way up to Mouri, I was on no particular path and was crawling over many rocks, but the slope is not steep, and there were no points of serious difficulty. Finally, I saw a derelict kalderimi that I knew led up to Mouri, so I went down to it, and had an easy time from there.
From Mouri to Kavros I followed the road. In Kavros I've always gone to the church, and then followed the south wall of a field that is just a bit to the south-east of the church. To the best of my ability to recall there was a cairn indicating time to turn south and follow the telephone poles. I saw what appeared to be a cairn, and turned south into the pine forest. But there were no telephone poles. Nevertheless, I was headed south, and the way was not difficult, and I kept edging a bit to the east in search of telephone poles. I was stressed about coming to a place that was impassible. That didn't happen, and I finally came across the poles. From then on the path was relatively easy again. (It is stones, but all of Sfakia is stones.)
The telephone poles run out at a plateau, still high above the sheepfold and the road, but by then the way is reasonably clear. When the slope starts down again, I also prefer to go slightly to the east of the ridge. There are bits of derelict kalderimi there, and though they are mostly useless, they do suggest that that was the preferred route in the past when kalderimis were the only way to get around.
I head for a tree that stands alone to the east of the sheepfold. There is a path down to the sheepfold from there.
Below the sheepfold, the Anavasi map is correct. Basically the path again follows the telephone poles (to the extent they still exist). There are also some bits of derelict kaldermini going down towards Georgitis, above where the old path becomes clear.
I got down to Chora Sfakion in time to get the evening ferry back to Loutro.
NOTES: It would be very helpful if the path up (and down) the eastern wall of the gorge between Timios Stavros and Mouri were better marked. In the past I have always found this path difficult to follow - whether going up or down.
Also, it would be helpful to mark the path from Kavros, whether from the road or from the church, to where one can find the telephone poles.
More comments on walks in Sfakia in due time.