Families with school-age children, pensioners who play sports.
500 – 1000 m
1,000 – 1,500 m above sea level
Hobby athletes, retirees in top shape, teenagers in good shape.
1,000 – 1,500 m above sea level
1,500 – 3,000 m above sea level
Very good physical condition required, not suitable for pensioners and children under 18.
1,500 – 2,000 m
3,000 – 4,500 m above sea level
Active sports people in perfect health and mental condition.
above 2,000 m
4,500 m above sea level and above