Sunlight Tree Eve is a colossal tree that absorbs sunlight and transfers it to its roots that also supply air to the ocean floor through respiration. It was first mentioned by Neptune when asked by Nami why the ocean floor was so brightly lit. He tells her that it is like the boss of the Yurukiman Mangrove at the Sabaody Archipelago, possibly meaning that it is their trunk. It is through this tree's roots that Fishman Island is able to have light 10,000 meters below the surface of the ocean. Usopp notes there may be some connection between it and the Treasure Tree Adam.