Easy: walking approx. 1-3 km and up to 3 hours a day, mostly flat terrain, minimal difference in height.
Active: walking up to 10 km and 2-5 hours a day, daily height difference up to approx. 500m, there may be steep ascents/descents and uneven terrain.
Average: walking up to 15 km and 4-6 hours a day, daily height difference up to approx. 1000m, there may be steep ascents/descents and uneven/slippery terrain .
Difficult: walking up to 20 km and 6-8 hours a day, the daily height difference can be more than 1000m, there can be steep ascents/declines and uneven/slippery landscape. Previous hiking experience recommended.
Very difficult: walking can be up to 25 km per day and up to 10 hours, daily height difference can be over 1000m, there can be steep ascents/declines and uneven/ slippery terrain. The overnight altitude can be over 5000m. Previous hiking experience required.
