3 - 4
FATMAP difficulty grade
Take the Rotair Stand TITLIS to the top.
Exit and ski the Titlis glacier on the skiers left.
Travers to the left even more to arrive at the start of the first climb (level2 klettersteig) Climb the 'KNIFE' (watch out, danger exposure) Cross the knife and you will arrive at the start of the first repel in to the couloir 2698 m.
Ski the Bim Chlynen Gletscherli.
Then you arrive at the Schwarzi Naad, second and third or fourth rappel (depends on snow conditions) Ski down until 2100 m Schwarze berg.
Skin up the Wendengletscher.
Arriving at the Tierberg with the Grassen Biwak on top.
From here you can skin up Grassen summit or decent to the valley and take the bus to ENGELBERG at the bus station Engelberg Fürenalp cable car.