05/01/2026
When you reach 200 meters (656 ft), you enter the ocean's twilight zone — an expansive world with almost no light.
It's so black that photosynthesis is no longer possible. The twilight zone is between 200 and 1,000 meters.
The record for the deepest dive by a human? 332 m (1,090ft).
Beyond this twilight region, at depths of 1000 m (3280 ft), you enter eternal darkness. This is the midnight zone. — an expansive world that leads down to abyssal plains.
These are reached at a depth of 4000 m (13,000 ft). But it doesn't stop there. Next comes the hadal zone at 6,000 m (19,000 ft). The deepest part of this zone is the Mariana Trench, which reaches 10,935 m (35,876 ft) deep — making it deeper than Mount Everest is tall.
