Day 1 Geneve
Day 2 Geneve [Train] --> Interlaken
Day 3 Interlaken [Train] --> Wengen [Hiking] --> Grindelwald
Day 4 Grindelwald [Train] --> KI Scheidegg/Jungfrau/Lauterbrunnen
Day 2 Geneve [Train] --> Interlaken
Day 3 Interlaken [Train] --> Wengen [Hiking] --> Grindelwald
Day 4 Grindelwald [Train] --> KI Scheidegg/Jungfrau/Lauterbrunnen