Since January, when the merger was announced, the group’s guest satisfaction and NPS scores have risen by 20% across the summer, average passenger numbers per sailing have doubled and operational costs have been cut through "group services and economies of scale".

The group said the merger, backed by shareholders Njord Partners and Cheyne Capital, has created a "financially robust and resilient organisation".

As part of the reorganisation, CFC's Marseille-based team will now focus exclusively on the sales and marketing of the Renaissances ship. 

It follows the appointment of Gilles Chauvet as commercial director and Maelysse Pierrot-Guibourt as director general France. Both will report into group chief executive Christian Verhounig.

Under the new structure, the group said CFC will retain its French identity and product for the domestic market, operating from Dunkirk and Marseille through the summer months.

While Ambassador will continue to serve the British market with adult-only no-fly cruises from seven UK ports.

It comes shortly after CFC's Renaissance ship departed on the inaugural sailing of the group's first-ever fly-cruise winter season, which combines British, French and Dutch source markets and represents Ambassador's first venture into fly-cruising.

The group is focusing on leveraging its popular, affordable quality offering to establish new destinations while "delivering authentic and sustainable cruise experiences to a wide audience".

It added that it expects the cruise market to grow 12% each year for the next five years.

Verhounig said: “The departure of Renaissance for the Caribbean marks not only an exciting new chapter for the ship and our guests, but also the culmination of 10 months of hard work to fully integrate CFC into Ambassador.

"This integration has delivered a stronger, more efficient and more unified organisation that reflects our commitment to listening, evolving and providing our guests with even more opportunities to enjoy the warmest welcome at sea with us."

He added: "By combining resources, expertise and scale, we’ve enhanced both guest experience and commercial performance while establishing a framework for sustainable, long-term growth.”