Gadiot also actively campaigns against slavery and human trafficking, and once rowed across the Atlantic to support the cause. He rowed across the Atlantic Ocean from the Caribbean to Africa with a crew in about 39 days. Afterwards, he ran a self-sufficient 250-kilometer ultra-marathon in the Sahara Desert. He finally completed his journey by climbing Mount Kilimanjaro. Gadiot gave talks to thousands of school children educating them about the issues. With Rowing Against Slavery, Gadiot was able to raise money for Anti-Slavery International and Save the Children.