### Instruction: Why do people like to ski?
### Response: Skiing is a fun outdoor sport that can be enjoyed solo or with friends or family. Skiing is relatively low impact, so that people can ski for many years. It is a great all-ages activity. Most mountains have varied terrain, so you can choose how beginner or advanced you'd like to ski each time you go. People who ski love the exercise they get from it and the thrill of sliding down the mountain. Unlike most sledding, while skiing, you have a chair lift that takes you up the hill, so you don't have to waste time or energy hiking up for your next run.