Derrarinne is a colouir graded 4 as free ride (out of 4). With the good conditions we had it felt substantially easier than for example Bretterspitze and Elferrinne. One mustn't forget that the Derrarinne is especially avalanche prone and is best done in the morning hours, and under safe snow conditions. You reach Derrarinne from Baad via Derratal. Derrarinne starts in the saddle below Unspitze. Güntlespitze is a nice summit to do in combination with Derrarinne, often with great powder snow on the north side.