Examples from the Web for underwater
The fundamental issue: the boundaries of the underwater Lomonosov Ridge.
Theoretically, the ship can take on all comers in the air, sea, underwater or on land.Can the Navy's $12 Billion Stealth Destroyer Stay Afloat?|Dave Majumdar|October 22, 2014|DAILY BEAST
Did something happen to Bob during those few seconds underwater?The Walking Dead’s Most Gruesome Scene Yet: ‘A Man’s Gotta Eat’|Melissa Leon|October 20, 2014|DAILY BEAST
A few hundred meters upriver, you see groves of date palms swaying as if underwater.Whatever You Do Someone Will Die. A Short Story About Impossible Choices in Iraq|Nathan Bradley Bethea|August 31, 2014|DAILY BEAST
Underwater rover Nereus was lost to the deep last month, and it's not the first.Lost Ocean Rover Leaves Gap in Biology and Alzheimer's Research|Beenish Ahmed|June 9, 2014|DAILY BEAST
Fish and all forms of underwater life make a background noise over the hydrophones, you know.
We saw a crude type of underwater craft moving in this direction, and followed it at a distance.The Golden Amazons of Venus|John Murray Reynolds
He also intended getting plenty of underwater movies of the colorful reefs and fish.The Wailing Octopus|Harold Leland Goodwin
The rushing sound from underwater was a loud, throbbing hum which had no relationship with the humming sound that drove fish.Creatures of the Abyss|Murray Leinster
Then he drew up a list of supplies and underwater search gear needed for the missile hunt.