The principle of cabin rentals consists of setting guaranteed departure and return days to spend along a pre-set itinerary (although subject to weather conditions.)
The fact that the costs of a single boat and its crew can be shared among 3 to 6 cabin-users makes the catamaran solution a very affordable one for those who wish to make a different trip to Mauritius, especially that a yacht-rental includes accommodation, meals while being an excursion.