Across
- 6. a long pole, fence, wall, or natural feature, such as a mountain or sea, that stops people from going somewhere
- 8. the land next to or close to the sea
- 9. under the surface of the water, especially under the surface of the sea
- 10. the activity of swimming while using a snorkel
Down
- 1. having bright colours or a lot of different colours
- 2. the surface of something that is a different colour from the surrounding surface
- 3. the sport of swimming underwater with special breathing equipment
- 4. a substance like rock, formed in the sea by groups of particular types of small animal, often used in jewellery
- 5. an area of coral, the top of which can sometimes be seen just above the sea
- 7. a line of rocks or sand just above or just below the surface of the sea, often dangerous to ships