The phrase "at underwater" is not correct and usable in written English.
It seems to be a confusion of prepositions and is not a standard expression.
Example: "The submarine is located underwater."
Alternatives: "beneath the surface" or "under the water."
She is really good at underwater swimming, she said.
To me, fish were something pretty to look at underwater and delicious to eat.
The giant, candy-colored object, moving at underwater speed through the sky, is a visual lure of the highest order.
The plan approved last week is directed at underwater plumes of radioactivity and chemical contamination coming from central and southern areas of the 5,300-acre 5,300-acre
In fact, I caught my daughter, who has complained about how hard I normally work, eyeballing me as I walked around at underwater speed, jotting notes at a pace guaranteed not to cause writer's cramp.
A large portion of each lot is underwater, and initially, the developers had difficulties finding a surveyor competent at underwater work, said Joanna Stoica, a zoning consultant with DID Architects, who advised on the project.
AT "55 Underwater", as the building at 55 Water Street in lower Manhattan has been known since being flooded during Hurricane Sandy in October, the clean-up is almost over.
This week's puzzle was suggested by mathematician Nelson Blachman, who began his research and teaching career at the Underwater Sound Laboratory at Harvard University 70 years ago.
The urge to pay it forward was in evidence Saturday night at the party, held at the Underwater Lounge in Brooklyn.
Train service on a stretch of the Staten Island Railway was suspended when the tracks flooded, and the beach at Robert Moses State Park was underwater at high tide.
Ms. Cacoulidis and her extended family swam with dolphins and dined at an underwater restaurant.
