Ballphin Palace

Ballphin Palaces are naturally spawning Structures introduced in the Shipwrecked DLC. They are found on the Ocean in Coral Reefs, and spawn Bottlenose Ballphins. They can also be crafted using 4 Limestones, 4 Seaweeds and 2 Doral Fins, and are found in the Structures Tab. Each Palace houses a single Bottlenose Ballphin, that returns there at Dusk. As with any other craftable structure, Ballphin Palaces, including naturally occurring ones, can be Hammered to return half of the resources needed to craft it.

Trivia

 * Ballphin Palaces were added to the Shipwrecked DLC more than a year after its official completion in an unnamed beta update.