Pencak silat looks a bit like a slow, flowing dance. Movements are smooth and curved, and many include low stances where the student bends their knees and balances carefully. It teaches self-control, balance, and respect - students bow to each other before practising, just like in karate or judo.
Each region of Indonesia has its own style. There are around 800 different schools of silat across the country. Some are fast and snappy, others are gentle and slow. Most use moves inspired by nature - the tiger, the snake, the eagle, even the way a tree bends in the wind.
Pencak silat is performed in pairs or alone, often to music. Big competitions are held all over South-East Asia and at the Asian Games. The performers wear loose comfortable trousers and a sash, sometimes with bright traditional patterns.
Children start learning as young as six. Lessons begin with stretching, breathing and balance. New students spend weeks learning just to stand correctly before they learn any moves. Teachers say balance and patience are more important than being fast.