Water sources are available at each stage and their location mentionned in each stage description.
For this long 7 stage trek, the hiker needs:
- minimum training
- to be used to several day treks, for a first timer this trek could be a bit tricky
- respect schedules as there are lots of postal bus connections
- be able to carry a somewhat substantial amount, you're backpack will weigh between 10 and 12 kg
- the European Health card in case of an incident
To carry out the trek we used these accommodations:
D1: Cabane de Louvie,
D2: Cabane de Prafleuri,
D3: Gîte de l'Ecureuil,
D4: Cabane de Bella Tola,
D5: Hôtel Schwarzhorn (Gruben),
D6: Hôtel Alpina (Grachen),
D7: Hôtel Gletschergarten (Saas-Fee).
You can check out the services of these different places on the internet. Transportation costs (ski lifts, buses, trains) are also available.
To complete the daily rundown Smartphone owners can download the SuisseMobile app giving them access to the Suisse "IGN" map which has a lot more detail than the OSM enclosed here.