Surabaya 2013 Posted on September 21, 2013 by John and Paula In June and September we visited Surabaya, Indonesia to prepare for and conduct a Conference. Surabaya is the second largest city in Indonesia and is an industrial center with a lot of oil and petrochemical businesses. It is located just South of the Equator so the weather is tropical and doesn’t change much year-round. We had the opportunity to enjoy the local culture with our friends. We also had the opportunity to inspect a large power plant.