The main walkthrough of Sword of the Sea focuses on restoring water oases in each region. This involves activating water orbs and lanterns using your Resonate ability. Progression often requires navigating unique environments and utilizing special movement abilities like Water Rail. Each chapter presents distinct challenges and methods for restoring the water.

Main Walkthrough

The goal of Sword of the Sea is to restore the water oasis in each area by activating water orbs or lanterns using the Resonate ability (X button).

Forbidden Valley Guide:

This chapter is quicker and spent entirely on the back of a dolphin. You can jump with the A button and use Resonate with X.

Start by going up the stairs and dropping off the ledge into the sand.
Follow the path to the dolphin and hop on its back.
On the dolphin, jump to hit all green crystals to collect Tetra.
Swim forward and activate all lanterns in the sand. There's a small patch to the left and a larger one surrounding a tower.
Follow the path of water and fish up the hill.
Branch off to the left to activate more lanterns.
Continue following the path over the bridge with large statues.

Sacred River Guide:

This chapter introduces the Water Rail ability, activated by jumping three times in a row, used to cross gaps with green air strips.

Start by going out of the cave into the temple and around the corner to the right.
You'll encounter a gap with a green strip of air; use Water Rail to cross.
Once across, go up the stairs on the left side and use Water Rail to float through hanging gold lanterns.
After activating the hanging lanterns, from the right side of the stairs, use Water Rail again to fly to the left side, past the hanging lanterns. This will open a gate.
Go through this room and into the next.
From the stele in this room, take a right to find a make-shift ramp leading up.
After dropping down from a ledge into an area with boats, activate three patches of lanterns. Use boost orbs for faster movement.
Follow the gold path in the sand to a geyser spot and activate it.
Use the spawned jellyfish around the tall rock in the center to get to the top.