The quick review looked at water knowledge in special island countries in the Pacific. These places are different because they have small fragile water sources and deal with problems like droughts, cyclones, and pollution. Disasters can make them lose money each year. There are many small communities in rural areas scattered around, while the main cities have lots of informal settlements and are growing quickly. Between 2015 and 2020, the urban population in Melanesian countries is predicted to grow more than 3% yearly.