Liveaboard

Liveaboard can mean:

Scuba diving liveaboards

In the recreational scuba diving industry, a liveaboard service offers its guests to stay on board for one or more nights, unlike a day boat operation. This allows time to travel to more distant divesites. Normally a liveaboard operation charters for ten to thirty passengers.

It ensures that the passengers can reach many dive sites and they and their diving gear do not have to be trucked about long distances every day to and from a hotel on hand, often (as in the Red Sea in the summer) in very hot weather: e.g. one afternoon at Sharm el Sheikh on land the shade temperature reached 51°C = 124°F.

The usual style of a Red Sea diving liveaboard can be seen in this image. With variations, their internal layout is something like this:
It is about 100 feet or 33 meters long. The decks are, from bottom up:

While most liveaboards around the world are usually made from fiber and steel hull boats, in Indonesia, the traditional pinisi boats made from teak wood is commonly used. An example of a pinisi style liveaboard is based in Komodo National Park.

References