The Indonesian island of Sulawesi is ideal for adventurous cyclists: this is for riders who want the physical challenge of tropical mountains, who are looking for cultural adventure in a traditional Asian society off the beaten track, and who view the unpredictability of travel in a developing country as something to be expected and enjoyed.

This one week mountain bike tour explores the extraordinary relationship between South East Asia's greatest river, the Mekong, and the ancient city of Angkor Thom, once the world's largest city. Following tracks and riverside trails we encounter rural Mekong communities before visiting the awesome temples ruins of Angkor.

The Mekong Explorer is a sample bike, boat and kayak adventure following the mighty Mekong River from southern Laos into northern Cambodia, including the ancient World heritage site of Wat Phu, the 4,000 Islands, where the Mekong is at it widest, and the Ramsar flooded forests in Cambodia's Stoeung Treng (Stung Treng) Province.

This is a chronological encounter with the temples, allowing visitors to understand the architectural evolution of Angkor, as successive kings left their mark on the Khmer empire.