The Tonle Sap Lake is the lifeline of more than 1 million people, but its biodiversity is under threat from climate change, overfishing, corruption and hydroelectric dams.
Although the military junta in Thailand has announced a date for elections, protesters say they have heard this before and the country could sink into crisis.
Cambodian opposition leader-in-exile Sam Rainsy, is trying to mount a strong challenge to long-ruling Prime Minister Hun Sen – from and with help of Europe.