The Western zone of the country is where the highest population density is recorded, most trading is located in around the suburbs of the west zone. The zone manages to hit a balance between the natural escapes and the commercial establishments. Specially the suburbs and the far western side of the coast is rich in bio diversity and gives a shape of the suburban coastal living. History related, the western zone is a major part of the former Kotte Kingdom and then had been active parts of the colonial ruling like Dutch, Portuguese and English. Throughout and now the zone has been and is undergoing rapid changes to its infrastructure and modernity. The population density is at 5,821,710 where the demographic cross section is headed by Sinhala Buddhists and Tamils ranking second, the other ethnicities take almost an equal minority share. The climate of the zone is mixed and depicting of tropical weather which consist of rainfall and sunshine at an equal stand. There is sun mostly year round and Mach to May and October to November is monsoon seasons with a heavy rainfall. The Western zone provides the highest contribution to the Gross Domestic Product contributing 41.2% of the Provincial Gross Domestic Product(PGDP) and has a nominal PGDP growth rate of 5.8% as of 2015. Agriculture only made up 1.7% of the GDP the lowest among the nine provinces while Industrial sector made up 34.6% the highest in the country and service sector represented 56.5%. being the metropolis of the country the zone is a mixture of food and celebrations of all cultures. From Buddhist celebrations to Christian celebrations even to international festivals like Holi is celebrated around the zone and particularly has a depicted interest every day for the tourist eye.