Deepest-known Blue Hole Discovered in the South China Sea

2nd May, 2024


These marine caves formed during past ice ages, now flooded as sea levels rose.

What is a Blue Hole?

Found in the South China Sea, near the disputed Paracel Islands.

Where is this Giant?

Estimated at over 1,300 feet deep; the largest yet discovered. The bottom is still a mystery!

How Deep Is It?

As you go deeper, blue holes lack sunlight, oxygen, and typical reef life.

Not Your Typical Reef 

Scientists wonder if unknown species might thrive in extreme conditions.

What Might Be Down There?

Sediments within the blue hole could reveal past climates and ocean changes.

Ocean Time Capsule

Reaching the bottom requires specialized equipment and deep diving expertise.

Exploration Challenges