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.

A visit to a longhouse is often the highlight of a trip to Sarawak, offering a glimpse into the lifestyle of the various tribes who have for generations lived in the remote interior of Borneo. While there are many areas in Sarawak where longhouses can be visited, Ulu Ai is one of the best.

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 Sepik River is one of two vast tropical river systems in Papua New Guinea that meander through the densely forested lowlands of the world's second largest - and the world's tallest - island. Along the banks of the river and its many tributaries live sparsely scattered, remote villages scarcely contacted by the outside world, where people live a lifestyle that has changed little for thousands of years.