The mechanical bridge crossing is the first puzzle to solve in Call of the Sea. You must cross the bridge to progress to the next area, but you might be unsure about the rotating pillar’s code to lower it.
There are five rotating pillar parts, and you need to line up symbols in the correct order to lower the bridge. If you look at the back of the pillar, you will see an etching that shows the sun, two birds, a mountain, the ocean, and some fish. Each one corresponds to a different symbol on the rotating pillar sections, so you need to work out which symbol relates to each piece of the carving.
Walk down the main path that leads away from the pillar. You will eventually come across a red mural on your left side. Walk up to it and look through its center. Nora will jot down the mural’s symbol in her journal. If you open the journal by tapping the Y button on your Xbox controller, you will see that the mountain’s symbol is one of the five present on the rotating pillar.
Continue down the main path until you see a small hut next to a river. Another red mural is here, so interact with it to get the fish symbol. From there, spin around and walk through the overgrown area that you can reach by walking across a plank of wood. Interact with the red mural here to remove a shutter blocking the light from hitting the sand. This gets you the sun symbol.
Go back on yourself and take a right. This takes you into an open area with lorikeet parrots flying around. There are multiple red murals here, but head to the one with three arrows pointing left, in the image below, to get the bird symbol.
Finally, open the gate to your right. This leads back to the beach that you landed on. Walk across from the boat into a small cave. Follow the path around until you reach a dead end. Look at the murals in the water to get the ocean symbol.
Head back to the rotating pillar. Open your journal, and rotate each pillar section so that the corresponding symbols line up with the carving on the back. Once that’s done, press the red button underneath, and the bridge will lower for you to cross.