Lachlan Murdoch and wife Sarah enjoy lunch on their $30million yacht

He flew into Sydney on his $90million private jet last week.

And on Saturday, media baron Lachlan Murdoch and his model wife Sarah spent a relaxing day on their $30million superyacht, Istros.

The couple, who have been married for 23 years, enjoyed lunch and champagne on the vessel as they cruised around Sydney Harbour with family and friends.

Fun times: Media baron Lachlan Murdoch and his model wife Sarah cruised around Sydney Harbour on their new $30million superyacht on Saturday

Luxe: The couple, who have been married for 23 years, enjoyed lunch and champagne on deck

Luxe: The couple, who have been married for 23 years, enjoyed lunch and champagne on deck

Sarah, 49, kept warm in a striped jumper and black pants as she chatted to pals.

Meanwhile, Lachlan, 50, looked stylish in a white T-shirt, navy cardigan and grey pants.

Later in the day, the pair took their daughter Aerin and her school friends around the harbour on the vessel to see the annual Vivid Sydney festival.

It comes just one day after the couple were spotted cruising around Sydney Harbour with friends, including Vogue Australia Editor-in-Chief, Edwina McCann on Friday.

They looked as happy as ever as they lapped up the sun on-board the vessel and enjoyed the stunning views.

Style: Sarah kept warm in a striped jumper and black pants as she chatted to friends on board

Style: Sarah kept warm in a striped jumper and black pants as she chatted to friends on board

Keeping warm: Lachlan looked stylish in a white T-shirt, navy cardigan and grey pants

Keeping warm: Lachlan looked stylish in a white T-shirt, navy cardigan and grey pants

Fashionable friends: It comes just one day after the couple were spotted cruising around Sydney Harbour with friends, including Vogue Australia Editor-in-Chief, Edwina McCann (far left) and personal hairdresser/makeup artist, Shane Paish (far right) on Friday

Fashionable friends: It comes just one day after the couple were spotted cruising around Sydney Harbour with friends, including Vogue Australia Editor-in-Chief, Edwina McCann (far left) and personal hairdresser/makeup artist, Shane Paish (far right) on Friday

The News Corp co-chairman last visited Sydney in April when he stopped by after a trip to French Polynesia with his family.

Before then, he had visited Australia in February with commentator Piers Morgan.

During the Covid pandemic, it looked as though the Murdochs planned to settle Down Under permanently.

Lachlan and Sarah are parents to sons Kalan Alexander, 17, and Aidan Patrick, 16, and daughter Aerin Elisabeth, 12.

In April last year, the Sydney Morning Herald reported the Murdochs could be staying in Australia ‘for years, not months, as initially believed’.

The couple, who own a home in Bellevue Hill, known as Le Manoir, married in 1999.

Travel: The News Corp co-chairman last visited Sydney in April when he stopped by after a trip to French Polynesia with his family

Travel: The News Corp co-chairman last visited Sydney in April when he stopped by after a trip to French Polynesia with his family

New home? During the Covid pandemic, it looked as though the Murdochs planned to settle Down Under permanently

New home? During the Covid pandemic, it looked as though the Murdochs planned to settle Down Under permanently

Lachlan purchased the superyacht Istros earlier this year.

The vessel is likely to be moored where the family recently purchased a $38million ‘boat shed’ at Wunulla Road, Point Piper.

The 42-metre Istros, which was built in 1954 and subsequently refurbished, was once owned by the Pappadakis shipping dynasty.

New purchase: Lachlan bought the superyacht Istros earlier this year

New purchase: Lachlan bought the superyacht Istros earlier this year

Move: The vessel is likely to be moored where the family recently purchased a $38million 'boat shed' at Wunulla Road, Point Piper

Move: The vessel is likely to be moored where the family recently purchased a $38million ‘boat shed’ at Wunulla Road, Point Piper

It won the grand prize for the best restored vessel at the Monaco Yacht Club Prada Classic Yacht Show in 2001.

But it fell into disrepair and was little more than a rusting hulk when it was rescued from a Maltese port in 2015, salvaged and rebuilt.

The interiors were redesigned in chic Scandinavian style by Van Geest Design.

History: The 42-metre Istros, which was built in 1954 and subsequently refurbished, was once owned by the Pappadakis shipping dynasty

History: The 42-metre Istros, which was built in 1954 and subsequently refurbished, was once owned by the Pappadakis shipping dynasty

Iconic: The interiors were redesigned in chic Scandinavian style by Van Geest Design

Iconic: The interiors were redesigned in chic Scandinavian style by Van Geest Design

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