Join us on the OCF Tibet and Nepal Cycling Challenge - an adventure of a lifetime. This is not a race. The journey is about camaraderie, getting fit, sharing a powerful and emotive experience and most importantly helping OCF in their quest to support medical research to find a cure for childhood cancer. Join the OCF adventure today, long live kids. If you're looking for a challenging adventure that includes mountain biking, Buddhist culture, remote villages and even a visit to Everest Base Camp, finishing with the longest downhill bike ride anywhere, then look no further. This trip is tailor-made for you. The Tibetan Plateau is a land of unparalleled superlatives: it is the largest and highest plateau on our planet, averaging 4500m in altitiude. It is buttressed along its southern flank by the world's greatest mountain range, the Himalayas. Only a few cyclists have ridden along its inhospitable plateau and forged a passage through these mystic lands into Kathmandu via Everest Base Camp. The reward is the longest downhill ride in the world as you enter into Nepal, dropping an unimaginable 4500m over 156km. At a breathless average altitude of around 4450m this expedition is not for the faint hearted, but for the fit and spirited pioneer, that feels at home on a bike.