The Vrutak mountain hut is located on Prenj, in the upper part of the Tisovica valley, below the Otiš and Zelena Glava massif. It is an important base for routes through Tisovica and toward central Prenj, especially for ascents of Zelena Glava, Otiš, Lupoglav, Velika Kapa, and other peaks in this part of the mountain.

The hut can accommodate about 10 hikers. Nearby are the Vrutak and Lončić springs, but they may dry up in periods of drought, so water should be planned in advance. In hiking descriptions, the hut is often associated with PD Borašnica from Konjic, and it is advisable to check access and overnight conditions before visiting.

Vrutak is a useful base for multi-day hikes on Prenj, especially when approaching from the Idbar - Tisovica direction or when traversing between Jezerce, Tisovica, Rapti, and the ridges leading toward Prenj’s highest peaks.