By team of three, you will have the opportunity to compete in a Trail-Triathlon Challenge which will take place in two stages. From Monday, you will leave for two days of trail to criss-cross the Brest surroundings. You will refuel in the bivouacs provided for this purpose while contemplating the magnificent harbor of Brest. After these two days of intense trail running with nearly twenty kilometers in the legs, a triathlon in the form of a team relay awaits you on Friday. You will then have to split up, one of you will go swimming in open water from the Moulin Blanc beach, another to walk the coastal paths and the last by bike.