Supporters traveled from Nairobi on a festive Madaraka Express train led by party leaders like Gladys Wanga, with President William Ruto, a founding member, set to attend alongside other pioneers, while former President Uhuru Kenyatta declined. The event features youth forums at Fort Jesus, a waterfront rally, and reflections on ODM's legacy, amid criticism over Ruto's Ksh 1 million donation for youth travel.