Entry has closed
Entry to the 2017 challenge is now closed but we have loads of other events and challenges for you to choose from.
This challenge takes you from Vietnamese Saigon, now Ho Chi Minh City, through the rice-paddies and waterways of the beautiful Mekong Delta into Cambodia.
The challenge that has it all
You will pedal through this friendly country towards one of the most impressive sights in Southeast Asia, the Royal Temples of Angkor Wat.
You'll encounter some rolling hills, but the main challenge lies in the long, hot dusty days in the saddle as you cycle through these remote areas. And of course all the fascinating insights into the region’s cultures, ancient and modern, that you will gather along the route, are a real highlight of the experience.
An overseas cycling challenge for The Royal Marsden Cancer Charity is also a fantastic way to make new friends - often for life! And you will certainly get a taste for adventure after you've tried this one.
This challenge is run by the lovely people at Discover Adventure specially to support The Royal Marsden.
Still need convincing?
Watch a video taster of the experience