Legend of Zelda Ocarina of Time logo with text saying 'Zelda64 Home'.
Sword icon with the text 'Adventure Strategy'
A scroll-like paper with the text 'Battling Big Octo' on the left and an image of Death Mountain on the right

Now that Link has learned to cooperate with Princess Ruto, it's time to search for the missing Zora's Sapphire. To achieve this goal Link will need to find a Boomerang buried somewhere withing Jabu-Jabu's sprawling gut.

Boomerang

Back on the first floor, carry the princess back to the room with sinking holes in the floor. On the opposite side is a door leading to an unusual area where twisting tentacles lurk. Holding Princess Ruto, step on the switch which is too strong to be pressed with Link's weight alone.

Parasitic Tentacles

To open another switch in this area, Link must drop the princess on the button and proceed without her. She won't appreciate being left behind, but she'll wait patiently anyway.

Bigocto

With all of the Parasitic Tentacles destroyed, Link and Princess Ruto can return to the room with holes in the floor and drop down the opening that was previously blocked by a green tentacle. The door on the floor below leads to the Zora's Sapphire!