One of the many commendations you can complete as you explore the Sunken Kingdom is The Mysteries of the Sunken Kingdom commendation. This commendation is also required to purchase The Legend of the Sunken Kingdom voyage from Larinna.
To complete this commendation, you must uncover all 30 secrets throughout the Sunken Kingdom. To do this, you will need to read all 30 journals hidden away in the Siren Shrines. There are five journals in each one of the six Shrines.
Below you will find guides to help you locate and read each one of the journals for each Shrine. In addition, if you are stuck on a particular puzzle in one of the Shrines, we will also link to our complete guides for each Shine. These will help you complete any Shrine from top to bottom!