■Underwater action

Always be upper the tide of the team leader while underwater.

If you are located under the tide of the team leader, it is difficult to see the hand signal of the team leader unless you turn your back in the direction of travel, and you can not enjoy diving safely.

When stopping in fast tides, be careful not to damage the creatures and grab the rocks on the sea floor.

If you lose your buddy or team leader, you will ascend to water surface without searching for a buddy or team leader.

The boat is unaware that the members of the group have separated, so the position of the diver ascending is unknown.
Be careful of the boat approaching when ascending.