A protest initiative titled Ride 4 Vitosha unofficially opened the 2011/12 ski season at the Vitosha Mountain nearby Bulgaria's capital Sofia.

Earlier in December, the Vitosha Ski company, which manages facilities on the mountain, had announced that it will not open them this season, as the government obstructed its activities.

After protests by environmentalists, the Bulgarian government had repealed permits issued to Vitosha Ski to enlarge the ski area on the mountain, which is a protected natural park.

Hundreds of skiers, snowboarders and mountain lovers were present at Monday's event, backed by the "For the Nature" environmental NGO coalition.

According to people who were at the Aleko ski station on Vitosha, they wanted to show that people could engage in skiing without the aid of companies such as Vitosha Ski.

They also argued for a balance between active human use of natural resources for recreation and respect for nature.

"The past 10 years have allowed Bulgarian ski sport and tourism to be overtaken by several mutually intertwined offshore companies which have deployed concerted pricing practices to make ski sport and tourism and expensive pastime activity," "For the Nature" cautioned in a statement.

"Bulgarian authorities have turned a blind eye to this illegal cartel agreement, thereby forcing an increasing number of Bulgarians to go abroad to practice the sport," the environmentalists add.

Later Monday, Vitosha Ski announced a counter-statement dismissing the event as marginal and arguing that no meaningful tourism can occur if the state obstructs tourism companies.