Misty Falls is a waterfall, though only the top portion has ever been seen via a flashback during Hadithi the Hero. There are large rocks of various sizes jutting out of the water, and a tall, rocky cliff either side.
When Hadithi comes to the Pride Lands, he tells everyone of his daring "Hadithi Spin" move against ten hungry crocodiles. Later, after seeing how selfless Ono is, he confesses to him that the day he performed the "Hadithi Spin" in Misty Falls wasn't entirely accurate. He actually fell through the sky, and there was no Hadithi Spin to begin with.