What is the wildest race you know of?
Mine is the Everest Marathon run from the original Base Camp to the Sherpa capital of Namche Bazaar. Just getting there is a 21 day trek and if your health survives the trek, food, and other hazards, you will blow your mind with the scenery. Beware though, Sarnassa Hill at 13 miles is a true killer and has been the downfall of many an ego!