From Antholz Obertal > Müllerhof (Antholz Obertal) > at the "Müllerkreuzl" (cross) path n. 9 starts on the right side > crossing the river "Plötzlbach" > military path on the Grüblalm (which is not managed ad rest stop) > eventually continue to the Grüblscharte.
From Antholz Mittertal > Riederhof > path n. 1 until you reach the path n. 9 in Antholz Obertal.
Arrival by public transport
from train station Valdaora:
>See here for the bus & train timetable