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tles between the slit marks (your predeter-
mined bearing), choose a distinctive object
near the edge of vision in that direction,
swim toward it, and repeat the operation on
reaching it.
- Commonly, the diver wants to follow a pre-
determined bearing under water, trying to
reach a wreck, a rock etc. When submerging
after obtaining the bearing on the surface,
he must be careful not to accidentally disturb
the direction ring, and to be on the safe side,
the compass bearing should always be
memorized.
- Avoid swimming long distances "in the blue".
With practice you can swim straight by hold-
ing the compass constantly in front of your
face, making sure that the direction line as
precisely as possible points in your swim-
ming direction. This can be facilitated by
holding the compass in your hand instead of
attaching it to your wrist. When possible,
start by diving straight down to the bottom,
then use the compass to follow fixed points,
as described above.
- In clear water, the compass can be used to
swim in a search pattern over a fairly large
area. Count your swim kick pairs (each left
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