ocean deep
- abyssImmeasurably profound depth
- trenchLong narrow excavation
- fathomNautical depth unit
- darknessTotal absence of light
- pressureForce upon contact
submarine · dive · plunge · bottomless · chasm · murky · sunless · creatures · bioluminescent · crushing · silent · vast · unexplored · leagues · seafloor · descent · depths · current
vertical position in water
ocean deepocean surface
Top of the sea
sea surface · surface waters · surface · topside · surface layer
depth/shallowness
ocean deepshallows
Areas of little depth
shoal · shallow waters · shallow water · tidal flat · coastal waters
accessibility/remoteness
ocean deepshoreline
Land-water boundary
beachfront · coastal waters · harbor · bay · navigable waters