The vast expanse of the ocean floor, shrouded in mystery, remains largely unexplored, despite our advanced technologies. This is a startling revelation, considering we have more detailed maps of the Moon than the deep seafloor. The sheer size of the ocean floor, covering two-thirds of the Earth's surface, and its inaccessibility deep offshore, present formidable challenges for exploration. A recent study, the Global Dive Dataset, reveals a startling statistic: only 0.001% of the deep seafloor has been explored, equivalent to an area the size of Rhode Island. This minuscule exploration is heavily biased, with most dives concentrated near the US, Japan, New Zealand, France, and Germany, leaving vast regions unseen and unknown. The focus on deep canyons and escarpments has overshadowed other critical areas like abyssal plains. Moreover, the depth of exploration has been decreasing, with shallower dives becoming the norm. This is problematic because the majority of the ocean lies between 2km and 6km deep. The lack of involvement from most countries in deep-sea exploration further exacerbates the issue. To address these challenges, efforts are underway to make deep-sea tools more accessible and affordable, and to explore lesser-known sites, shedding light on the mysteries of the deep ocean.
