Related Clues:
- Spots for sunken treasure
- Distances from the top downwards
- What one might sink to
- Sand dollar habitats
- Ocean floors
- Bottommost areas
- Downward distances
- Deep water shelter erected to secure small port
- Lowest levels of exercise taken in climbing outbuilding
- Demoralisation as part of organisation has no heart
- Distances downward
- Profundities
- Deep water shelter put back around small port
- Sea bottom
- Oddly deep patches?