Zorbing is today a very popular activity. It is a kind of dangerous sport and it comes from New Zealand. Zorbing was invented by the bungee-jumping inventors and it is becoming more and more popular. Zorbing means rolling in a three-metre ball, which is made of PVC. A man rolling in this ball looks like a big hamster. No special skills are required to take up this activity. When you are running in it, the centrifugal force keeps you inside of the zorb. People who love this activity are called zorbonauts. They can reach even 50 kilometres per hour rolling down the hill. It looks like an extremely dangerous activity, but it isn't so dangerous indeed. Zorbonauts don't risk hurting, because the air inside the ball cushions all falls. If you are so courageous, try this exciting activity. You can meet zorbonauts on almost every big hill on the open space.
There is another interesting sport called street luge. It was established as the Olympic event and at first it was gone in for as a winter activity. The street luge is kind of ice luge. To play street luge you have to lay flat on your back and steer a luge, with your head just inches over the ground. It was taken up in southern California by groups of young riders who want to find something exciting on the road. They are also considered as the inventor of this activity. There is some essential requirement for this sport: the lack of fear and a small piece of rubber from car tyres to save your feet. The most experienced lugers are able to reach an extreme speed of 145 kilometres per hour. They have to stop by means of their feet. What is more, the equipment is very expensive. The suit made of thin leather costs over 1500 $ and it results that not many people can try this activity. Moreover, we should be aware that it is very dangerous sport. It may cause some serious injuries, or even death.
