TM98 Power-Up Punch

==Information==
Location: Azurine Lake
Available: After Badge 13
==Guide==
Go to Apophyll Academy and go to the area right next to its right side, like in the left photo. Surf up and right along the rocky outline to your left.
Surf up along the outline until you reach the opening like in the right photo. Go left inside, dive down. 
When underwater, go to the unlocked house in the bottom right corner. Take the S12 Key.
Go out and go up past the very first grassy area, like in the left photo, and resurface. After that, go to the top left corner of the area to reach that piece of land, like in the right photo.
Go up and down to reach the water, then dive down and go all the way to the right to reach the house like in the left photo. Go inside and get the S4 Key.
Go into the house and get the item.