Parkour coach Ibrahim al-Kadiri, 19, demonstrates his Parkour skills with his friend in the rebel-held city of Inkhil, west of Deraa, Syria. Ibrahim says many team members suffered injuries, including broken toes and bruises. He himself injured his back: "Eight months ago, during an attempt to jump from high place, I injured my back and I stayed in bed for several days until I recovered." REUTERS/Alaa Al-Faqir

Parkour coach Ibrahim al-Kadiri, 19, drinks tea with his friends in the rebel-held city of Inkhil, west of Deraa, Syria.

Ahmed al-Kadiri, 18, demonstrates his Parkour skills on a damaged building in the rebel-held city of Inkhil, west of Deraa, Syria.

Parkour coach Ibrahim al-Kadiri, 19, and Muhannad al-Kadiri (top), 18, demonstrate their parkour skills in the rebel-held city of Inkhil, west of Deraa, Syria. "I love competing with my friends to achieve the highest jump," Muhannad says.

Parkour coach Ibrahim al-Kadiri, 19, demonstrates his parkour skills amid damage in the rebel-held city of Inkhil, west of Deraa, Syria. Led by Ibrahim, the team trains on quiet days.

Parkour coach Ibrahim al-Kadiri, 19, demonstrates his Parkour skills amid damaged buildings in the rebel-held city of Inkhil, west of Deraa, Syria. Ibrahim and his team members say the sport is a challenge against the bad conditions they have to endure because of the war.

Ibrahim Eid, 16, demonstrates his Parkour skills in front of damaged building in the rebel-held city of Inkhil, west of Deraa, Syria.

Muhannad al-Kadiri (R),18, and Ibrahim Eid, 16, demonstrate their Parkour skills over a military vehicle in the rebel-held city of Inkhil, west of Deraa, Syria.

Parkour coach Ibrahim al-Kadiri, 19, demonstrates his Parkour skills near damaged buildings in the rebel-held city of Inkhil, west of Deraa, Syria. The team records their performances in photos and videos, which they post on social media.

Parkour coach Ibrahim al-Kadiri (L), 19, and Muhannad al-Kadiri, 18, demonstrate their Parkour skills in the rebel-held city of Inkhil, west of Deraa, Syria. Members of the group say Parkour takes them away from the atmosphere of war and helps them to take their sorrows away. It unloads their negative energy.

Parkour coach Ibrahim al-Kadiri, 19, is seen demonstrating his Parkour skills from a damaged building as people watch him in the rebel-held city of Inkhil, west of Deraa, Syria.

Parkour coach Ibrahim al-Kadiri (L), 19, and Muhannad al-Kadiri, 18, demonstrate their parkour skills over a bin painted with an opposition flag in the rebel-held city of Inkhil, west of Deraa, Syria. "Parkour makes me a mythical man. It gets us out of the atmosphere of war and makes us forget some of our pain and sorrows, for when i jump from a high place I feel free and i enjoy the fun," Muhammad says.

Parkour coach Ibrahim al-Kadiri (L), 19, and Muhannad al-Kadiri, 18, demonstrate their Parkour skills in the rebel-held city of Inkhil, west of Deraa, Syria.