Semarang is the largest city in the Central Java province. It has a population of almost 1.7 million residents. It is a major tourist destination and has been named as the cleanest tourist destination in Southeast Asia by the ASEAN Clean Tourist City Standard for 2020-2022. In fact, Semarang has won the Adipura Award six times in a row from 2012-2017. It is an Indonesian award for achievement in cleanliness and greenery in parks, streets, markets, shop buildings, premises, schools, cleanliness of waterways and rivers.