Related Clues:
- Submerged threat
- 22 across will be aware of free travel
- Britpop band with "Glow" album
- Great Barrier ___
- Coral feature
- Spot for snorkeling
- Setting for some schools
- Bank's not entirely free finance
- Sailboat hazard
- Large fish; swindler
- Submerged rock or coral
- 'Jaws' threat
- Vibrant marine ecosystem
- Menace in 106-Down
- Home to Nemo, in a Pixar movie