The McDuck Sublab of the Future is a top-secret deep-sea laboratory that was built in 1964 with the goal of exploring the un-explorable. It is owned by Scrooge McDuck and is located along the MidAtlantic Ridge; the longest ocean mountain range in the world. The lab was eventually destroyed by a large eruption of hydrothermal vents when Dewey Duck and Huey Duck visited the lab to meet their Cousin Fethry who worked there. It first appeared in the DuckTales (2017) episode The Depths of Cousin Fethry!