F45 Training will begin offering its functional fitness classes on board cruise ships, after securing a partnership with OneSpaWorld.

The franchised operator has signed a multi-year commercial deal to offer its 45-minute classes on Celebrity-branded cruise ships – a subsidiary of Royal Caribbean.

F45 formally kicked off the partnership this week with workouts on board the Celebrity Apex ship, during its maiden US voyage.

“We are thrilled to work with OneSpaWorld and Celebrity Cruises on this exciting new partnership, bringing F45’s functional, effective, fun and community-driven workouts to guests,” said Adam Gilchrist, CEO of F45.

“We're committed to finding new and innovative ways to offer what we consider to be the world’s best workout to new and existing F45 members around the world.

"With this partnership, we are expanding the reach of F45’s fitness offering as we begin to market to the 30 million passengers who travel on cruise ships each year.”

F45 Training completed an IPO in July 2021, which valued the company at US$1.4bn.