Around 20 percent of Bangkok’s residents live in illegal squatter settlements all around the city. Dating back from the 1950s, Klong Toey is one of the country’s oldest and most well-known slums. Many inhabitants of Klong Toey originate from the country’s poorer northeast who have been attracted by the work opportunities of the district’s river port, Bangkok’s largest wet market, the business district as well as the oil refineries in nearby districts. Aside from poverty, drug addiction is a very pressing problem among the slum’s youth. Methamphetamine and crystal methamphetamine are the two most common hard drugs. Furthermore, basic amenities such as water and electricity are always in short supply.