In the Otonglo neighbourhood, a young boy draws water from the Saka River to wash after his daily exercise session. A few hundred meters upstream, the Kodiaga high security prison, which houses 3,000 inmates, discharges its untreated sewage into the river from which residents draw drinking and domestic water. ''Over the years, we have had cases of cholera in the area. We believe that the river flowing from the prison could be the main cause of the disease'', says an environmental activist. Like all rivers in the area, the water eventually flows into Lake Victoria.