September Hikes are listed according to length, and almost all of them can easily be modified into shorter or longer versions, with more or less elevation gain. Engelberg - Engstlenalp 11.9 km, 1260 m ↑, 423 m ↓ Brülisau - Saxer Lücke 15.8 km, 897 m ↑, 897 m ↓ Wasserauen - Säntis 15.8 km, 1956 m ↑, 321 m ↓ Bever - Preda 16.7 km, 902 m ↑, 828 m ↓ Sunnbüel - Gemmipass 16.7 km, 1052 m ↑, 643 m ↓ Engelberg - Brüsti 16.8 km, 1317 m ↑, 883 m ↓ Airolo - Lake Ritóm 19.1 km, 1486 m ↑, 1236 m ↓ Via Capricorn (day 1) 20 km, 1010 m ↑, 1157 m ↓ Via Capricorn (day 2) 21 km, 1540 m ↑, 1193 m ↓ Engstlenalp - Melchsee-Frutt 22.4 km, 1290 m ↑, 1200 m ↓ Unterschächen - Klausenpass 22.4 km, 1905 m ↑, 952 m ↓