Even the most fearless adventurer needs a map and this is yours. Below you’ll find the names of all of the activities you’ll be facing as part of Tough Mudder Challenge – Grand Canyon. It includes four compulsory activities that you must complete over the course of the challenge, as well as four new activities released weekly, from which you must complete at least two. In total Challenger, you’ll complete 10 activities as you venture through Tough Mudder Challenge – Grand Canyon over 21 days.