Panchaea

Panchaea is a vast megastructure located in the middle of the ocean. This is a huge bottomless pit of over 300m in diameter. Panchaea features two docks that accommodate freighters powered by solar Turbosail from XNG Shipping Company and two tall towers surrounded by cranes and pylons with radar protected by radomes.

Panchaea is the name of a fictional island, first mentioned by ancient Greek philosopher Euhemerus in the late 4th century BC