There was once an undersea post office in the Bahamas.
241
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
It's impossible to sink in the Dead Sea without equipment!
72
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
The Titanic is about as long as the Empire State building is tall.
174
NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8