1 |
Choose a location where a diving point with a maximum water depth of about 10m spreads offshore, and stand at the coast entry point. |
2 |
Hold the compass correctly and aim your body so that the rubber line arrow points offshore. |
3 |
Turn the bezel so that the north of the magnetic needle is between the index marks. |
4 |
Let's record the compass bearing indicated by the magnetic needle. |
5 |
After descending, swim so that the north of the magnetic needle falls between the index marks, and move to a place where the terrain changes significantly. |
6 |
At the location where you change direction, point the rubber line in the
new direction and record the water depth, the terrain and creatures that
serve as landmarks and the compass bearing indicated by the magnetic needle. |
7 |
In addition, swim so that the north of the magnetic needle points to the compass direction recorded at 6, and move to a place where the terrain changes significantly. |
8 |
At the location where you change direction, point the rubber line in the
new direction and record the water depth, the terrain and creatures that
serve as landmarks and the compass bearing indicated by the magnetic needle. |
9 |
Return to the opposite direction when the two thirds the air volume is reached. |
10 |
While you return along the terrain, record additional terrain and creatures that serve as landmarks. |
11 |
The exit point is the direction of the rubber line when the south of the magnetic needle is between the index marks. |
12 |
Ascend when the first third the air volume is reached. |
13 |
The memory map is completed. |
