Guests onboard P&O’s three iconic ships – the Pacific Jewel, Pacific Pearl and Pacific Dawn – celebrated this year’s Melbourne Cup in style.

It was also a momentous occasion for Pacific Dawn as it was the largest ship to clear Melbourne’s Westgate Bridge.

There were special guests onboard like legendary Melbourne Cup jockeys John Marshall and Michael Clarke onboard the Pacific Pearl and Pacific Jewel, owner of Cup winning horse Rogan Josh, Wendy Green and Bart Cummings’ Flemington track rider Joe Agresta.

There were also a slew of Australian celebrities onboard like Carmelo Pizzino, radio personality Bianca Dye and TV presenter Zoe Sheridan.

And of course, fashion is one of the biggest parts of Cup day with P&O holding its own Myer Fashions at Sea events for the ladies who got frocked up.

Check out the pictures from P&O’s Melbourne Cup celebrations.