目次

Boat diving specialty

Certification card

Equipment

Tidal current

Boat terminology

Boat diving characteristic

Normal boat diving
■Precautions when boarding and disembarking

Normal boat diving
■Preparation for diving

Normal boat diving
■Preparation for entry

Normal boat diving
■Entry1

Normal boat diving
■Entry2

Normal boat diving
■Entry3

Normal boat diving
■Entry4

Normal boat diving
■Decent

Normal boat diving
■Underwater action

Normal boat diving
■Ascent

Normal boat diving
■Exit

Drift diving
■Preparation for entry

Drift diving
■Entry

Drift diving
■Decent

Drift diving
■Underwater action

Drift diving
■Ascent

Drift diving
■Exit

Drift diving
■Measures for seasickness


Terminology may be used during a briefing before boat diving.
Remember the special terms of the boat for a smooth briefing.


①Bow
The front of the boat. This is the place where the shaking is the largest during running.

②Stern
The back of the boat. This is the place where the shaking is least during running.

③Starboard
The right side of the boat towards the bow.

④Port
The left side of the boat towards the bow.

⑤Ladder
A ladder for boarding a boat from the water. Some are designed to be removable.

⑥Screw
Do not approach, as there is a risk of getting caught.

⑦Deck
Flat part of the boat floor. Be careful with your feet as they become slippery when wet.

⑧Cabin
The room. Large boats also have showers and washrooms.

⑨Anchor
It digs into rocks and sand on the seabed, securing the boat to the surface.

⑩Anchor line
Rope for connecting anchor and boat.

⑪Bollard
It is a columnar projection on the bow. Connect the anchor line and fix.

⑫Descent line
Get caught in this or descend using this as a guide. A weight is hung on the tip.

⑬Current line
Hold on to this and wait for the descent order. Even if there is a tide, you can avoid swimming and prevent physical exhaustion.

⑭Tag line
A rope extending from the boat to the descent line. After entry, you can travel to the descent line.

⑮Gear line
A rope for passing underwater cameras, etc. from a boat to a diver.





⑯Windlass
It is a machine for winding the anchor line.




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