The route takes place entirely on the CAI trails no. 632 and 632/a.
From the Gilberti Refuge, take the CAI trail no. 632 towards the Bila Pec saddle, which can be reached in about 20 minutes of uphill walking. Once at the saddle, follow the CAI trail no. 632/a variant that descends to the right of the World War I fort and leads, after a steep gravelly channel that must be crossed carefully, into the heart of the karst plateau.
The trail now becomes gentler and crosses the spectacular plateau between karst and glacial formations such as furrowed fields, grooves, and roche moutonnées until reaching the Boegan abyss, also called the navel of Mount Canin.
After being amazed by the beauty of the place, with the spectacular karst amphitheater behind the sinkhole, the trail gently ascends again to about 1980m above sea level where it rejoins the CAI trail no. 632. Continue on it westwards until you reach the Grubia saddle, where the Marussich bivouac is located, the end point of the itinerary.
From the bivouac, retrace the entire CAI trail no. 632 back to the Bila Pec saddle and then back to the Gilberti Refuge. Pay attention to the snowfields, especially in early summer, as they may make crossing the channels dangerous.
