Economy:    Fishing is one of the main economic activities at the port.The economy of Sihanoukville is based primarily in its port for import and exports to the national economy. It has also an oil container port and cargo facilities.Other activities in the economy of the province include fishing, aquaculture, agriculture, mining, oil, factories (frozen shrimp processing, garment and Angkor Beer), real estate and tourism.[14]
             In the last years the increasing of tourism has improved the construction of hotels and tourism infrastructures in the province. Foreign and national investment has been proven by the presence of new comers to the city. fishing is an inportance jobs for living of the people in Sihanouk ville, many seventhy persent have this job for their living and their family. Also thirty persent are seller and taxi driver have motorbike, tok tok, car(bus / van). The people in Sihanouk ville no have many freetime for holiday, except when it have 

Kampong Som: is a province in southern Cambodia on the Gulf of Thailand. This port city is a growing Cambodian urban center, located 185 kilometres (115 mi) southwest of the Cambodian capital,  after King Father Norodom Sihanouk and grew up around the construction of Sihanoukville Port. Construction on the port began in June 1955 and it was the only deep water port in Cambodia.[2]. The port was built in part due to the waning power of the French leading to the Vietnamese tightening their control over the Mekong Delta and hence restricting river access to Cambodia. Sihanoukville's beaches have made it a popular tourist destination.[3].  The province is served by Sihanoukville International Airport, 18 kilometres (11 mi) from downtown, although it has a limited commercial operation. The planned flights between Sihanoukville and Siem Reap may encourage visitors to Angkor temples in Siem Reap to extend their stay, though the crash of a charter flight in Phnom Damrey on 25 June 2007 from Siem Riep,[4] has caused concerns.
                  Sihanoukville attracts tourists with its laidback beach atmosphere when compared to Thailand's more developed ones. However, the city has attracted not only tourists, but several NGOs and foreign and national investors in the last years in order to develop not only the growing tourist industry, but its capacity as an international sea port[5] and other sectors like textile and real estate.[6] In Sihanoukville is also located the main factory of Angkor, the Cambodian national beer.
Sihanoukville was the place of the last official battle of the United States army in the Vietnam War, although the incident took place outside Vietnam. It is known as the Mayagüez incident on May 12-15, 1975 between the US forces and the Khmer Rouge. Currently, visitors dive in Koh Tang, one of the Sihanoukville islands where the major battle to free the SS Mayagüez took place. Divers can see two shipwrecks 40 metres (130 ft) down.[7]
                  On 22 December 2008, King Norodom Sihamoni signed a Royal Decree that changed the municipalities of Kep, Pailin and Sihanoukville into provinces, as well as adjusting several provincial borders

                  Sihanouk Ville: Sihanouk Ville, 230 km from Phnom Penh, is the provincial center (Town) of the Kampong Som province.  The town was named after King Sihanouk (in power 1954 - 1970) as a dedication to his effort of creating a port city to improve the international trades.  The town was re-named "Kampong Som city", after the King was overthrown in 1970 by Lon Nol, his military leader.  Many people these days still call the port city Kampong Som.  The town has a population of 18,000 (government census 2003).  There are several beaches in Sihanouk Ville but the most popular and developed one is O Chheu Teal beach.  There are some other beaches sprawling along the cost but they are not as well developed, such as Chmkar Dong and Thmar Thom beaches.  The popular Beaches: Victoria, Independence, Sokha, O Chheu Teal, and O Tres.
                   Travel to Sihanouk Ville from Phnom Penh: You can hire a private taxi from Phnom Penh to Sihanouk Ville for 25 US dollars.  The air-conditioned public bus is 3.50 US dollars one way.  The trip takes between 3 and 4 hours.