![A man drives his quad bike through a mud pool at the International Off-road Festival in somogybabod, Hungary on June 8, 2019. The annual festival is the largest off-road event in Europe, featuring some 1,200 amateur race vehicles and more than 20 thousand participants. (Photo/IC)](http://www.ecns.cn/hd/2019/06/11/afd8479d1c8d480a87065f256d78304f.jpg)
A man drives his quad bike through a mud pool at the International Off-road Festival in somogybabod, Hungary on June 8, 2019. The annual festival is the largest off-road event in Europe, featuring some 1,200 amateur race vehicles and more than 20 thousand participants. (Photo/IC)
![A man drives his quad bike at the International Off-road Festival in somogybabod, Hungary on June 8, 2019. The annual festival is the largest off-road event in Europe, featuring some 1,200 amateur race vehicles and more than 20 thousand participants. (Photo/IC)](http://www.ecns.cn/hd/2019/06/11/523f18521f0d4f46aa43bed23e1f1df2.jpg)
A man drives his quad bike at the International Off-road Festival in somogybabod, Hungary on June 8, 2019. The annual festival is the largest off-road event in Europe, featuring some 1,200 amateur race vehicles and more than 20 thousand participants. (Photo/IC)
![The annual festival is the largest off-road event in Europe, featuring some 1,200 amateur race vehicles and more than 20 thousand participants. (Photo/IC)](http://www.ecns.cn/hd/2019/06/11/a6672536446948bd9b6f1c964d62e660.jpg)
The annual festival is the largest off-road event in Europe, featuring some 1,200 amateur race vehicles and more than 20 thousand participants. (Photo/IC)