The 3rd stage starts at the Stoanahütte. From there we climb from the Judenburgerkreuz following the trail markings, 308, or 312 in the direction of Zirbitzkogel steeper uphill.
The "Frischnschwemm" is a somewhat strenous section, which can be overcome well with a few swtichbacks. We reach, following the markings to the Wildseeblick - a popular resting place. From here it goes slightly uphill to the Fuchskogel (2.214m), photogenic cairn, oversizes summit cross. Along the broad ridge we follow the long-distance hiking trail 308 to the "Murtalblick" (2.240m). On the section of the trail, from around mid-July, we are constantly accompanied by the scent of fresh Speik . From here the landscape grants us a deep view of the Lavantsee (origin of the Carinthian Lavant) and to the glacier grindings.
Now we cross northeastward slightly downhill to the ÖTK monument (pyramid of quartz blocks) above the Lavantsee and then straight somewhat steeper uphill, via the supply path to the "Helmut-Erd-Schutzhaus" on the Zirbitzkogel (2.376m). After a "refreshment" any signs of fatigue are overcome. Strengthened, you reach the Zirbitzkogel summit (2.396m), which is within reach. A large panorama stone facilitates the determination of the surrounding mountain landscape (360 degree panorama).
We now descend in a westerly direction, preferably during the evening atmosphere. overlooking almost the entire nature park region. The "Weite Alm" in front of us is glowing red. From the summit, we first descend soutward to the "Murtalblick", then westward downhill past the spring known as the "Wanderertränke", to the "Herter Höhe" and finally back to the Tonnerhütte.