On top of the countless areas that you can explore in Watatsumi Island, you can also explore the Palace in the Pool Domain - one of the new domains added in Genshin Impact. Completing the puzzle will grant you 40 Primogems and 500 Adventurers' XP.
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The tricky part is not getting to the domain but unlocking it. Unlike other Domain Palaces, here you will have to complete a few puzzles that will allow you access to the Palace. The
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