Located at the nexus of future human migration and bodily alteration, this project references the inevitable devastating consequences of the Anthropocene, along with the earth’s increasing rejection of human activity over the last century. Lending itself to future human inhabitation, the Mariana Trench, located off the east coast of the Philippines is the deepest part of the planetary earth. As a captured space within the ocean, it consists of specific vertical parameters so we can incrementally train the human body to adapt to new deeper surroundings. Design research for Journey to the Deep II has been informed by a personal medical history of water and pressure induced ear complications. These historical experiences, and their projected extreme implications, have driven the speculative nature of a future Ear Nose and Throat (ENT) Modification Facility. Within the facility, humans are trained and modified iteratively over time to adapt to the Mariana Trench’s depths and pressure constrictions. Although it is an aim to eventually migrate humans underwater, this project is specifically interested in the stage that lies in between the present and the future. That is, between our current dwelling possibilities and the potential for future migration.