This page offers a walkthrough on how to take down the Divine Beast Vah Ruta in Zora’s Domain.
How to Calm the Divine Beast Vah Ruta
Once you’ve reached East Reservoir Lake, you’ll need to speak to Prince Sidon and prepare to take down the Divine Beast Vah Ruta!
You will be riding on Prince Sidon’s back, and once he gets close to the waterfalls spouting from Vah Ruta’s sides, you can climb up them and then fire an arrow at the weak points all along its body.
Vah Ruta will fight back, however, in the form of ice blocks that it will throw at you. Activate Cryonis during these sequences and break the blocks as soon as they are within range. Throughout the fight, Vah Ruta will throw both regular blocks at you, and spiked blocks, which will land in the water and track you.
After all of the ice blocks are broken (or they hit you, dealing a small amount of damage), Prince Sidon will approach the waterfalls. He will cycle between two of them and each time he gets close to one, the prompt to climb the waterfall will appear for a brief moment in time. Press [A] the moment you can and then while in the air, shoot the glowing pink spots you see on Vah Ruta’s body by pressing the ZR shoulder button.
Be sure to press [A] once you land back in the water to Hold on to Prince Sidon’s back so that you do not drown.
You will be repeating this process six times to hit all six weak spots. Once you have finished, Vah Ruta will calm down and open up its entrance. The skies will also clear. Prince Sidon will thank you, and then he will carry you up to the entrance point for Divine Beast Vah Ruta.
Now comes the hard part: Going into the belly of the beast and wringing it back from Ganon’s control.
You will automatically place the Sheikah Slate in the pedestal, and this will activate Vah Ruta as a fast travel point during the time you work on completing it. Mipha’s voice will speak with you and welcome you to the Divine Beast. She will tell you that your first goal should be to get to the Guidance Stone, which will give you a map of Vah Ruta.
At this point in the game, feel free to go ahead and pack up some food and gear, especially if the Lynel fight emptied your bag.
Once you are ready, go ahead and enter.