Across
- 2. Small inlet often sheltered from prevailing winds and swell.
- 5. Continuous body of saline water covering most of the planet.
- 7. Shorebird recognised by its contrasting plumage and vivid bill.
- 9. Relating to sailors, ships or navigation at sea.
- 10. Marine cephalopod renowned for its chambered spiral shell.
- 11. Collective term for the living world and its physical surroundings.
- 14. Tall white wading birds increasingly encountered in British wetlands.
- 16. Ocean whose gyre influences weather systems reaching western Britain.
- 17. Coastal depression retaining seawater between tidal cycles.
Down
- 1. State of the tidal cycle when intertidal areas reach maximum exposure.
- 3. Designated walking route that traces an extensive maritime boundary.
- 4. Network of organisms interacting with one another and their environment.
- 6. Wave-riding discipline dependent on swell, wind and board control.
- 8. Landform typically carved by erosion or glacial activity between higher ground.
- 9. Practice of determining position and route across land or sea.
- 12. Transitional zone where freshwater systems meet marine waters.
- 13. Cliff-top blooms that contribute to the biodiversity of coastal grasslands.
- 15. Navigational beacon whose characteristic flashes assist mariners after dark.