Extreme Sports

There are thousands of extreme sports, some too dangerous and others not much. People who practice in these sports are very dedicated, because they prepare physically and mentally by a long time before they can participate in some competition.
Most of the time this started as a hobby for one person, but over the years find they have many skills and they become true professionals of some sport in special.
I think this is a great way to spend free time as it is a good habit to stay strong and healthy.