Ski trail difficulty is measured in "percent slope", a system in which a 100% slope equals a 45-degree angle. Medium difficulty trails (marked with a blue square) have a slope gradient between 25% and 40%. These trails are ideal for regular skiers.
This is the amount of people that can be transported by ski lifts etc. per hour. A bigger uphill capacity can indicate less waiting time, although it will be affected by how busy the resort is.
In resorts which allow off piste-skiing, you can ski anywhere which is great for adventurous types. However, there are hazards such cliff edges, avalanches or simply getting lost and suffering exhaustion.
Cross-country skiing is an Olympic sport that provides great exercise for both the upper and lower body. Resorts that keep the cross-country skiing trails open for the general public attract professional and casual skiers.
This is a long track, usually made of concrete covered in ice. They are used for bobsledding, and some can be used for other sports such as luge and skeleton.