Running of the Nudes same route taken by the Running of the Bulls, from the Santo Domingo corrals through the town’s streets, ending at the Plaza de Toros. The length of the run is some 800 metres (about half a mile) and the event takes about one hour. In 2002, approximately 25 naked streakers ran through Pamplona's winding streets to promote an alternative to the Running of the Bulls. Subsequent events saw a steady increase in the numbers of runners with an estimated 1000 nude or semi-nude runners taking part in the event in 2006. Animal welfare groups across Europe and in North America
Running of the bulls wooden fences is erected to direct the bulls along the route and to block off side streets. A double wooden fence is used in those areas where there is enough space, while in other parts the buildings of the street act as barriers. The gaps in the barricades are wide enough for a human to slip through but narrow enough to block a bull. The fence is composed of approximately three thousand separate pieces of wood. Some parts of the fence remain in place for the duration of the fiesta, while others are placed and removed each morning. Spectators can