Cape Town - Young men in Cape Town risk their lives by "train surfing".Ricardo Afrika photographed and filmed train surfers by sticking his cellphone camera out of a broken window on Metrorail’s central line, GroundUp reported.Train surfers stand outside a train, either on the side or on the top, while a train is moving. They perform stunts, such as dodging the overhead lines. It is extremely dangerous and illegal.Most train surfing appears to take place between Mutual station and Khayelitsha. The images and videos here were filmed on October 10 around 18:45, between the Philippi and Stock Road stations.Surfing typically takes place during peak hours - between 7:00 to 8:00 and from 15:00 to 19:00. Trains are often congested during these times. Commuters hang from doors, windows, between carriages, and even from the top of the trains.READ: Cape Town train commuters risk death to get to workBut train surfing means more than merely hanging on to the outside; it involves doing stunts too. There were about 10 people surfing when these images and videos were shot.Surfers range in age from school boys to blue collar workers. Primary and high school students typically do what is called "ukulathaza" - running next to the train on the platform until it is at high speed, and then they jump in.READ: Teen dies while 'train surfing' in Cape TownSome of the adults take it to the extreme of running on top of the train while it is in motion and ducking under cables and bridges, as in the videos below. No-one appears to make a serious effort to stop the surfers. There's a lack of security and the trains are packed, with no authorities around to check on safety.If there are security personnel, they usually stand with the drivers on each end of the train, which means they can't really see what happens when the train is in motion."Spiderman" is a blue-collar worker who surfs. I asked him why he does it. He replied: "To us this is a sport. I mostly do it for adrenaline and the thrill can get addictive."