April 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. Brunnen - Gersau 8.9 km, 288 m ↑, 289 m ↓ Tibetan Bridge 9.2 km, 681 m ↑, 681 m ↓ Lake Cauma - Lake Cresta 11.1 km, 408 m ↑, 408 m ↓ Montbovon - Rossinière 11.1 km, 811 m ↑, 712 m ↓ Quinten - Seerenbachfälle 11.3 km, 631 m ↑, 633 m ↓ Näfels - Obersee 14.1 km, 924 m ↑, 924 m ↓ Monte San Giorgio 15 km, 1107 m ↑, 846 m ↓ Andeer - Innerferrera 15.7 km, 1140 m ↑, 643 m ↓ Isenthal - Alpler 15.8 km, 1086 m ↑, 740 m ↓ Erstfeld - Arnisee 16.3 km, 1578 m ↑, 686 m ↓ Guarda - Lavin 17.6 km, 1099 m ↑, 1104 m ↓ Brün - Flims 24.1 km, 1241 m ↑, 791 m ↓