The Great Bridge, also known as "Great Naruto Bridge" (なると大橋, Naruto Ōhashi) is a long, wide bridge connecting Leaf Village's Outskirts to the Land of Waves.
To obtain the Hidden Mist scroll, Zabuza must be defeated. He can be found on one end of the bridge.
To obtain the Ice Dragon scroll, Haku must be defeated. Haku can be found on the opposite side of Zabuza.