Players unlock Ancient Archives in Fisch by locating the entrance behind a waterfall and collecting four key fragments

To access the Ancient Archives in Fisch, players must first locate the entrance behind a waterfall on the isles. The easiest way is to use ziplines to reach a ledge above the cave entrance. Unlocking the Archives requires collecting four Ancient Archive Fragments. These include the Deep Sea Fragment found underwater, the Ancient Fragment obtained by fishing with specific bait, the Solar Fragment available only during a Solar Eclipse, and the Earth Fragment located in a nearby cave. To open the Archives, players need four participants to stand on pressure plates and place the Fragments into their corresponding pillars. Once all pillars are correctly positioned, the gate will open, granting access to the Archives.