Bomb bag upgrades

[Ruin]

• Bomb bag upgrades
• Get hold of the second from Iza after by unblocking the river in Upper Zora River.
• The third will be revealed after destroying the large underwater boulder with a water bomb in Zora's Domain's throne room.

At what point in the story can you go do these 2 upgrades? And where exactly is the 1st one?

[cornyjohn]

Bomb Bag 1: You buy some bombs at Barnes Bomb Shop in Kakariko. Barnes will sell you this Bomb Bag. That's easy -- drkay easy.

Bomb Bag 2: When you thaw out Zora's Domain (complete the second dungeon), go underwater and set a Water Bomb at the large rock in the center of the cave. A Goron inside will give you this Bomb Bag.

Bomb Bag 3: Talk to the woman outside of the Boat-Rental Shack and she will ask you to blow up rocks inside of the cave under her Unabomber-style shack. She will give you this Bomb Bag when you make it outside the other end of the shack-cave tunnel.

Giant Bomb Bag: After completing the task for the woman at the Boat-Rental Shack, go back and talk to her to play a game. Earn at least 25 points at the end of the mini-game and if you succeed, she will give you the Giant Bomb Bag.

*This isn't written by me