Fabien Cousteau is about to spend a full month 63 feet under the surface of the sea.

The grandson of underwater explorer Jacques-Yves Cousteau, Fabien is preparing to submerge himself in the NOAA-owned and Florida International University-managed Aquarius vessel for an endeavor known simply as Mission 31, according to a press release.

During his 31 days underwater in the Florida Keys National Marine Sanctuary, Cousteau will look into possible effects of climate change on sea life, corals and sponges. He will report back to The Weather Channel periodically with his findings via Skype interviews.

It will be the longest Aquarius mission ever and twice as long as any of Cousteau's underwater explorations.

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"Using the latest camera technology, we will be able to show the world every second of Mission 31 in unedited, real-time and I believe it's going to shock people," said Cousteau. "We have explored less than five percent of our ocean realms; there's so much more to be discovered."

With the mission expected to begin Oct. 1, the vessel will be submerged on Sept. 31, toward the tail end of the Atlantic hurricane season.

"Historically, October is the most likely month for hurricanes to hit Florida," said weather.com senior meteorologist Jon Erdman. "One only needs to go back to October 2005, when Hurricane Wilma accelerated into South Florida."

Cousteau also plans to study the effects of long-term submerging of the human body to see if life without sun exposure can occur for prolonged periods, among other consequences of living in a high-pressure environment.

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