The Cirrus B is a motor boat from Le Boat. Le Boat is not a shipyard but Europe's largest inland charter operator, trading under this name since 2001 and descended from the Blakes and Crown Blue Line fleets. Its boats are classed by its own names - Horizon, Vision, Classique - and built to its specification for licence-free hire. The hull measures about 8.8 metres. It sleeps up to 4.
Adriavela lists 25 boats of this model. They were built between 1998 and 2003, so the layout and the equipment differ from one hull to the next. The hulls here carry 1 cabins and 4 berths.
They leave from bases up and down the coast, Marina Wolfsbruch, Port Cassafières and Vinkeveen among them. Under power the day is planned by distance rather than by wind, which suits short hops between bays and a crew that would rather swim than trim.