First, find the park in the center of Zrnovci. While there, log into the Zrnovci Park Geocache, and you might visit city hall and say hello to Blagoj, or Gary. Then, walk up the river
Cross either bridge, and continue up the east side (this portion, about a km, can be driven if you like) to an apartment building built in conjunction with the hydro power plant just above. Turn right beyond the apartment, and cross this foot bridge.
To your right is an abandoned water powered grain mill, 
take the path to the left
Walk up the trail, past the power plant on the other side of the river, and to this rockslide (which may have been removed).
There's a good path around the outer edge. Continue a ways further to this spring, the coordinates of which you have on your GPS.
The waters from which taste slightly sweet, and are reputed to heal both skin and eye problems. A stonemason, Tome wanted to create a tribute to his younger brother "Pогле" (Rogle in Latin letters), so he developed this spring. Many of the local citizens believe in it, and fill various containers for home use.
Returning, just below the rockslide, there is a large red dot (11, meaning 11 minutes to / from town center) on the left edge of the trail. You may climb the bank, and follow the track across the meadow. 
It leads to an remarkable path cut into the cliff face which will lead you back through the old part of town. You won't get lost.
Anyone requiring services in Zrnovci should contact Blagoj at blagojdanev@yahoo.com. He speaks both English and Macedonian.