Need some Help in Zelda Twilight Princess!?

Okay, i'm one the poe hunt for jovani, and i have just gotten the 29th poe in the Upper Zora River. The game guide is now telling me to warp to the Bridge of Eldin, but the bridge is broken so midna won't let me warp there. and I need to cross the bridge to get inside the lava cavern. I've been stuck on this for quite a while so can somebody please help me?