@InspecterJones. “The entire deep ocean is completely untouched by us.”
Not true. The very deepest place anywhere on earth is in the Pacific Ocean and is known as the Mariana Trench. It has been visited already as stated in this excerpt from a Wikipedia article:
The Swiss-designed, Italian-built, United States Navy bathyscaphe Trieste reached the bottom at 1:06 p.m. on January 23, 1960, with U.S. Navy Lieutenant Don Walsh and Jacques Piccard on board. Iron shot was used for ballast, with gasoline for buoyancy. The onboard systems indicated a depth of 11,521 meters (37,799 ft), but this was later revised to 10,924 meters(35,813 ft). At the bottom, Walsh and Piccard were surprised to discover soles or flounder about 30 cm (1 ft) long, as well as shrimp. According to Piccard, “The bottom appeared light and clear, a waste of firm diatomaceous ooze”.