![call of the sea lens aligner call of the sea lens aligner](https://i.ytimg.com/vi/FhYzHMcDJBc/maxresdefault.jpg)
You will unlock the Seaside Serenade achievement for your troubles before solving one final easy section to complete chapter three. Check handler operation and RMS barcode and aligner retries. Look on the right, on the boxes, for the box with the initials. At the very end there will be a gate blocking the path.
![call of the sea lens aligner call of the sea lens aligner](https://1.bp.blogspot.com/-BmBzFgGxeN4/X-EOM_eY02I/AAAAAAAACnk/aDWmRKJbg2slgKXaUN5HKEOHCfTXppCbgCLcBGAsYHQ/w1200-h630-p-k-no-nu/call-of-the-sea-constillation-puzzle.jpg)
It requires you to complete the black ooze frequency test first, so solve that puzzle. Having done this, go back and move inland. The tidal organ puzzle is one of the lengthier puzzles to solve in Call of the Sea. Press the button on the stone tablet to activate the organ. Read the note on the left and move deeper into the cave on the left to examine the strange symbols depicting the sea through the hole in the wall. Turn around and close the pit by turning the dial twice. The first, second, and fifth pipes should have black ooze flowing through them, and the others should be blocked. The stone tablet should look like the image above. You will find one of the pipe valves on the right-hand wall of the passageway you walk through to get to the organ, two on either side of the pit, and one each down the two staircases that are either side of the stone tablet. Close the valves on the other four pipes. Locate these organ pipes and open their valves. Using the symbols above, you should now have the split left-to-right diamond, the solitary diamond, and the two diamond symbols.
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The corresponding sea level indicator swaps those symbols, which are on the top row, to different ones underneath the arrow.