This type of boat is used to transport divers (and equipment) to their dive site, which they cannot reach on their own. Diving boats can be sailing or equipped with a motor.
In addition, boats not only take divers to the right place, but can also be used as a shelter for day trips.
Diving boat features:
The stability of the vessel and enough space to transport not only divers, but also their equipment
The presence on board of special equipment for the convenience of immersion in water.