Question: how to get to the elephant divine beast?
Answer: Vah Ruta hurls ice blocks your way. Equip cryonis, center the blocks in your reticle and press L to shatter them. Destroy all of the ice blocks on once side, and Sydon will swim close to the giant mechanical elephant. Press A when you're near a waterfall, and you can fly up it (using Zora's Armor, of course).