Crew is the real limit
Twelve guests need a different crew count than twenty, not just another cabin. That is what moves the quote.

Experiences Group Aboard any charter · Labuan Bajo Charter Desk
Up to twenty, with the crew to match.
Beyond about twelve guests, the constraint stops being cabins and becomes crew. A superyacht carries eight to fifteen — enough that service never queues and the party can keep different hours.
The short answer
Space to be together and space to be alone, on the same vessel. Suits parties of 8–20; multi-generational and celebration groups. Season: April–November; book six months ahead at this size. Equipment: full-beam suites, tenders, water toys, multiple decks.
What makes it work
Twelve guests need a different crew count than twenty, not just another cabin. That is what moves the quote.
Multiple levels let one half of the party be loud while the other reads. On a single-deck hull that does not work.
Above twenty, a second hull sailing in company is often cheaper and better than the one boat big enough.
On paper
Everything above sits inside the all-inclusive charter rate unless noted otherwise. Park entrance and conservation fees are re-checked close to sailing.
Inside the rate
A private charter sets its own hours. Day boats run to a fixed schedule; you do not — which is usually the difference between doing this well and doing it in a queue. Specific inclusions depend on the yacht selected, our charter desk will confirm the full list for your chosen vessel.
Before you commit
Twenty on a superyacht with eight to fifteen crew. Larger groups run two vessels in company, which is quoted at preferential rates.
Six months for peak season. There are few hulls this size in Indonesian waters.
Yes, and it is often the better answer — more deck per guest and usually less money than the single largest hull.
Never. Charter is for the whole vessel; how you divide it among the party is your arithmetic, not ours.
Tell the desk this is the priority and how many days you have. The route is planned around it, and the written quote comes back the same day.
Ask the Desk on WhatsAppThe rest of the fleet
