He says he started making the videos two years ago when his regular teaching job was affected by the COVID-19 pandemic. Like many other people, who worked from home, Ma had to give online courses. Besides teaching, he trained at home for at least two hours a day to keep his muscles strong and his body flexible.

However, Ma couldn't make big moves since his home was small. One day, Ma and his wife, who is also a dancer, went to a nearby supermarket and on their way back home, the couple passed Greenwich Park, a popular tourist site with beautiful views of London.

Ma's wife said to him: "Why not do some dance moves here that you couldn't do at home?" Then Ma jumped off the ground and did a 360-degree spin, which was recorded by his wife on her phone.

"Back home, I edited the video with music and sent it to my friends. Surprisingly, they loved it, which inspired me to share it online," says Ma.

Later, he made more short videos when he went out and put them online. "I simply considered that as a way of capturing memories of my life."

Ma says he enjoys dancing outdoors, which brings him closer to nature and helps him to focus on his breathing. Ma also likes to interact with strangers, who are curious about his performances.

"Dance has become a medium of communication between me and nature, and between me and the people passing by," he says.