Related Clues:
- Lowest part
- Ocean abysses
- Distances below sea level
- Davy Jones's locker, with 'the'
- Oil-drilling sites
- Wet bottoms
- Extents
- Ocean-bottom areas
- Deepest or most central parts
- Distances down or front to back
- Extents downward, backward or inward
- Bottommost area
- Deep water shelter put up around small port
- Most extreme state
- They're plumbed