目次

Easy diving with navigation

Certification card

Navigation type

Surface natural navigation

Surface compass navigation

Underwater natural navigation 1

Underwater natural navigation 2

Underwater compass navigation 1

Underwater compass navigation 2

Underwater compass navigation 3

Underwater compass navigation 4

Underwater compass navigation 5


■Emergency procedure

1

In the unlikely event that you do not know the direction in water, once ascend to the surface water and check the direction of the exit point.

2

Hold the compass properly on the surface water, aim the rubber line at the exit point and rotate the bezel so that the south of the magnetic needle is between the index mark.

3

Make sure you have at least one-third the amount of air left before you dive again.

4

Be careful not to shift the south of the magnetic needle from between the index marks, and move straight toward the rubber line.

5

When the amount of air reaches the first third, ascend and move on the surface water to reach the exit point.

6

In a place where large rocks are continuous in a narrow area and the topography is complicated and the water depth changes drastically, a strong current such as rip current may occur.
When moving the water surface, look carefully at the water surface of the moving course and avoid the place where you can see waves that are different from other water surfaces.


Rip current is a strong flow like a river made by the concentration of seawater flow at the break of a shallow water.


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