10 |
|
Rock (islet) which does not cover, height above the plane of reference for elevations |
|
11 |
|
Rock which covers and uncovers, with height known or unknown above chart datum |
|
12 |
|
Rock awash at chart datum |
|
13 |
|
Underwater rock of unknown depth, dangerous to surface navigation |
|
14 |
|
Underwater rock of known depth |
|
14.1 |
- inside the corresponding depth area |
14.2 |
|
- outside the corresponding depth area, dangerous to surface navigation |
|
15 |
|
Underwater rock of known depth, not dangerous to surface navigation |
|
16 |
|
Submerged coral reef |
|
17 |
|
Breakers |
|