Surabaya, on the island of Java, boasts a population of nearly 3m, but the population of Greater Surabaya is estimated at more than 10m, making it the second-largest city in Indonesia. In addition to its size, Surabaya is the birthplace of Sukarno, the country’s founding father and first president, and home to one of the busiest ports in South-east Asia. “We managed to become...