deep
particularly deep area within the oceanic trench or elsewhere at the sea floor
Milwaukee Deep
deepest part of the Atlantic Ocean – part of the Puerto Rico Trench
Outer Silver Pit
deep in the North Sea
Dordrecht Deep
ocean deep in the Indian Ocean
Gotland Deep
marine depression in the Baltic Sea
Sigsbee Deep
deepest part of the Gulf of Mexico
Litke Deep
oceanic trench in the Arctic Ocean
Laurentian Fan
undersea landform in Atlantic Ocean
Calypso Deep
deepest part of the Mediterranean Sea
Meteor Deep
deepest point of the South Sandwich Trench
Challenger Deep
deepest known point in the Earth's seabed hydrosphere
Molloy Deep
Bathymetric feature in the Fram Strait
Sirena Deep
deep area in Mariana trench