As an entry point, we recommended parking at Tettermoor lookout tower at the end of the Tetter Moor. From there you can run the skating trail out of the valley. After about 200 meters, turn left onto a wide loop and then continue out of the valley. Between Untertalstraße road and Tetter Moor you reach Untertalbach below Gasthof Tetter inn where you then cross over the wooden bridge to the opposite (western) bank of the Untertalbach creek.
Here a loop takes you a little way into the valley and back to the bridge. Now follows a short steep climb to Gasthof Tetter inn, followed by the descent back to Tettermoor. Along the known route you run back towards the starting point.
Distance of the Tettermoor skating trail
The Tettermoor skating trail has a total length of 4 km. The loop near the lookout tower has about 450 m in length, the loop on the west bank of the Untertalbach about 950 m. The ascent to and downhill section from Gasthof Tetter has a length of about 300 m (in case you cut short this part you save about 200 m).
That said, you can shorten your lap by a total of 1.6 km or extend it with repetition of the loops.