Beneath the surface of earth’s oceans lies an underwater landscape as complex as anything you might find on land. While the average depth of oceans is 2.3 miles, the shape and depth of the seafloor is complex. Some features, like canyons and seamounts, might look familiar, while others, such as hydrothermal vents and methane seeps, are unique to the deep. The maps below will give you an idea what the surface of our globe looks like underwater.
