Twelve-year-old Zac sets out on his first solo mission as a spy for the Government Investigation Bureau, piloting an amphibious submersible in hopes of preventing enemies from accessing a top-secret transmitter 4,000 feet below the ocean's surface.

Describes different types of submarine vehicles and their development, discussing their various uses for military purposes, undersea exploration, and ocean research.

Ex-Navy SEAL Jack Kirkland returns from an aborted underwater salvage mission to find that the Earth is on the brink of nuclear destruction.

In an age of unprecedented exploration and innovation, our oceans remain largely unknown, and endlessly fascinating. Streever celebrates the daring pioneers who tested the limits of what the human body can endure under water as he traces both the little-known history and exciting future of how we travel and study the depths. He covers seventeenth-century leather-hulled submarines, their nuclear-powered descendants, and robots capable of roving unsupervised...

"When Isaac Bell attempts to decipher the forbidding deaths of nine men, he encounters a secret so powerful it could dictate the fate of the world in this riveting thriller by the #1 New York Times-bestselling author"-- A century apart, NUMA Director Dirk Pitt and detective Isaac Bell team up to unlock the truth about the most famous maritime disaster of all time. In the present day, Pitt makes a daring rescue from inside an antiquated submersible...

Alvin Submersible, a deep-sea vessel that can sink miles below the surface, takes readers on a tour of the ocean floor where they will explore underwater volcanoes, discover lost hydrogen bombs, hear about storied shipwrecks and meet hundreds of new species living far beneath the waves.

After Owen captures an enormous bullfrog, names it Tooley Graham, then has to release it, he and two friends try to use a small submarine that fell from a passing train to search for Tooley in the Carter, Georgia, pond it came from, while avoiding nosy neighbor Viola.