Haijulikani Wadi is a gorge in Africa. It means "uncharted gorge" in Swahili.
Ignatius took Phineas, Ferb, and their parents and friends there. He said: "In order you get there, you would need a highly unconventional vehicle". So after they came back, the kids built a highly unconventional vehicle to cross it. But, they almost fall down because of fight between Buford and Baljeet