Very easy route unfolding from Malga Trat to the slopes of Mazza di Pichea, where some fortifications dating back to the Great War are located.
During the First World War the emplacement under Pichea was used by the sentries who kept watch over Val Concei. Bocca di Trat and Saval were important logistic bases for the Austrian Army. Ludwig Riccabona, to whose memory the cave is dedicated, was native to Bolzano and was the commander of the Kaiserjäger (i.e. Tirolean infantrymen) regiment in Valle di Ledro.