Famous Underwater Tunnel
What Is the Most Famous Underwater Tunnel in the World? Discover the Channel Tunnel

Learn about the Channel Tunnel, the most famous underwater tunnel connecting the UK and France beneath the English Channel.

Seikan Tunnel Exploration
What Is the Longest Underwater Tunnel in the World?

Discover the Seikan Tunnel in Japan, the world's longest underwater tunnel connecting Honshu and Hokkaido beneath the Tsugaru Strait.

Deep Dive Record
World Record Dive Depth: The Bathyscaphe Trieste's Historic Submarine Descent

Discover the remarkable dive depth record set by the Bathyscaphe Trieste in the Mariana Trench.