With more than a thousand limestone peaks rising out of its crystalline, emerald waters, Halong Bay is is rightly viewed as one of the natural wonders of Vietnam, and is one of the country's five UNESCO World Heritage sites. Lesser known, and therefore less touristed are the equally stunning Lan Ha and Bai Tu Long Bays.

The nation of Indonesia stretches along an equatorial archipelago numbering nearly 18,000 islands in total. Encompassing several ecosystem types as well as straddling the boundaries between the Oriental and Australasian faunal regions, Indonesia is one of the most biodiverse nations on Earth.

Kanchanaburi is Thailand's third largest province lying 130-kilometres west and a comfortable 2-hour drive from Bangkok. The Province is rich in rainforest, lakes, rivers and wildlife, as well as ethnic minority people, and makes for some scenic as well as challenging biking.

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.