The Legend of Zelda: Twilight Princess Wii U Cheats and Tips

Bait could already be equipped. If so, link will eat the bait.

You have to go to the other side and drain the water with the chain. When you pull on the chain, it shuts the door and brings the water with it. Once the water is drained, you can dig under the hole and navigate through the hallways to get to Midna.

You can get fairies, blue potions and lantern oil (right now those would come in most handy) Later on you Should get rare Chu jelly, Fairy tears, Milk, larva (Not very important), soup(later on) and the ever so popular Hot springs water, and Red potions
You should probably invest in more bottles lol because the next temple is a doozy XD

To get the cradle, blow the hawk grass and point the wii-mote at the cradle (which the monkey is holding) then press the 'a' button. To get the cat back to it's owner, collect the fishing rod from the lady and catch two fish near where the cat stands when you have caught the 2nd fish, the cat will run back to it's owner. Now buy the slingshot for 30 rupees and shoot the nest down and woo hoo
Scoop up the bee larva with the bottle the lady gives you for free (awesome deal, cat=free bottle!).

If you used the key then saved it, the lock should be gone. But since it is the Lakebed Temple, many thing things have gone wrong in that Temple. I can't give you a full walkthrough but all I have to tell you is check the walkthroughs or go to YouTube