Pick up you at your hotel. We depart Phnom Penh for the former Cambodian capital of Udong on National Highway 5. The capital from 1618 to 1866, we explore the sacred hills here, which include historic pagodas and several stupas containing the remains of Cambodia's former kings. There are panoramic views over the Cambodian countryside in every direction. After an extensive visit to this historic place, we return to the Cambodian capital.

In the late afternoon, we board a local boat for a sunset cruise on the river. We set off on the Tonle Sap River, which famously reverses direction each year, acting as the world's largest natural flood barrier for the Mekong River. We cruise past the Royal Palace compound to the mighty Mekong River. We cruise past small villages and see fishing boats preparing their catch. We return hotel after dark.