After Jabu-Jabu rampages through the River Zora Village, Tri can make an entrance into the rift.

Find Tri's Friends, Part 1

Go west on the treetop, then follow the path on water and trees to find a glowing object. Check on it to save one of Tri's friends.

Find Tri's Friends, Part 2

Go back to the glowing spot where you first arrived in this area. Go southeast, then south along the fallen stone columns. Jump onto the sideways fence, go to the east edge of the fence, then walk north to go into the sideways water. Hold B to go to the surface, but be careful to avoid the rocks that the Octoroks spit at you. Then fall down onto the stone column below that has a glowing object on it. Check on the glowing object to save another of Tri's friends.

Find Tri's Friends, Part 3

Walk north on the column until you're in the water, then hold B to go to the surface. Get past any remaining Octoroks and make your way northeast, to where there is a tree. Use a trampoline or other echoes to get on top of the tree. Then go north and enter the cave.

Swim downward in the water, but avoid the Bombfish (or defeat it if you haven't learned the Bombfish echo yet). Go down to where there are two broken blocks. Create a Bombfish on top of the blocks, and if the Bombfish doesn't start flashing, press R to spin and make it start flashing. When you create a Bombfish, its explosion won't hurt you, so there is no need to swim away. Then go down through the gap where the blocks were.

Go left and swim in front of the air bubbles to refill your dive meter, but avoid letting the Tangler hit you. Go left and down, and create a Bombfish next to the broken block that is blocking the path to the glowing object. Press R to spin and activate the Bombfish (or let the Tangler attack the Bombfish to activate it). The Bombfish explodes and breaks the block. Then swim left to check on the glowing object and save another of Tri's friends.

Find Tri's Friends, Part 4

Swim back to the bubbles to refill your dive meter, then swim left and up to reach the surface. Defeat the dark Tektite that is bouncing around. You can hide underwater to stay safe from the Tektite and create a monster echo to defeat it for you. Then check on the glowing object that appears when the monster is gone.

Find Tri's Friends, Part 5

Go up the ladder, then create a Bombfish to the right to break the block. Go through the gap where the block was, then go to the right and go up the ladder to exit the cave.

Use echoes to reach the island above and to the west of the cave entrance. Defeat the dark Keese and pick up the energy that it drops. Then jump onto the stone of the island to the west, and walk west. There will be a cutscene. Then go to the left and check on the glowing object. There will be a cutscene. Tri's level gauge will increase, and you will get 2 Might Crystals.

After the cutscene, the quest "Chaos at River Zora Village" is completed. To continue, warp to the Sea Zora Village in Zora Cove. Go northeast, then when you are north of the small rift, go east and there will be a cutscene. This begins the quest Rampage at Zora Cove.