A. They're treasure hunters looking for the fabled Yamashita gold treasure along a dried river bed.
B. They are digging a grave for the goat they just ran over a few meters back.
C. They just feel like digging a hole, so mind your own business!
D. None of the above.
If you guessed D, you have Sherlock's instincts! That's the road that connects the towns of Tabuk and Tanudan in the province of Kalinga! Yup, it's that bad.
Our GPS told us civilization ended hours earlier and that no official road exists ahead of us. No kidding. How can the town of Tanudan, or any large community for that matter, be this isolated from civilization? Isolated communities need access to the city for the same reasons you and I do: hospitals for the sick, university for the children, and a market for our farmers (in this case, the revered Kalinga Coffee bean!) Google it and you'll get the impression that the Tabuk-Tanudan road is a reality. Does this look like a road to you? Enjoy.
(Pixel-peepers: I normally don't sharpen my photographs but this one needed a small amount of USM to bring out the details. Most digital files need some digital sharpening anyway so don't be shy. Better still, use a tripod whenever you can. Unless you're shooting at 1/500th of a second, you'll be surprised just how much sharper your photographs will become.