Jeff Bezos and fiancee Lauren Sanchez are spotted handing out with Katy Perry, Orlando Bloom and Usher in Croatia

Jeff Bezos and fiance Lauren Sanchez continue their summer Mediterranean tour, stopping in the Croatian city of Dubrovnik on Wednesday night with friends like Katy Perry, Orlando Bloom and Usher.

The group was seen strolling through the picturesque limestone-paved streets of the historic walled city, enjoying the early evening light.

Accompanied by socialite and influencer Derek Blasberg and protected by security guards who kept curious tourists at bay, they strolled down the Stradun – the pedestrianized main street, flanked by restaurants, bars and shops.

Sanchez, 53, wore a green skirt by Berlin-based designer Ottolinger for the outing, with a black crop top and Greek-style gold sandals.

The painterly-print recycled polyester maxi skirt retails for $400.

Her 59-year-old boyfriend was dressed in white chinos and a navy T-shirt.

The couple, who got engaged in May, seemed blissfully happy during their Mediterranean tour

Bezos and Sanchez were joined by Katy Perry and Orlando Bloom in coordinating all-white outfits, flanked by security guards

Singer Usher, in a flamboyant green shirt, and influencer Derek Blasberg, in a black t-shirt, were also part of their group

White outfits were clearly in favor: Bloom, 46, wore an all-white shorts, t-shirt, cardigan and baseball cap combination, while his singer-fiance wore a white crochet dress complemented by a brown Hermes mini Kelly bag, which sell for between $7,000 and $50,000.

Perry, 38, completed the first part of her Las Vegas residency on Aug. 13 and will return to Resorts World for another run of shows in October and November.

Bloom was due to shoot the boxing film The Cut in Nevada this summer, but the Hollywood actors’ strike brought him and others to a halt and the industry ground to a halt.

Usher, meanwhile, will play a show in Paris in September before joining Perry with his own residency in Las Vegas.

The 44-year-old Texan was flamboyantly dressed in a patterned green silk shirt and white pants.

His music performing girlfriend Jenn Goicoechea, with whom he shares two children, was nowhere to be seen.

The group sailed to the dock on the launch used to carry passengers from the 417-foot Koru, where they are stationed.

Sanchez, Bezos, Usher and Blasberg are seen at the launch, with Bloom and Perry in the back of the boat

Bezos and his friends are seen arriving at the wharf, curious tourists snapping their photos

The captain of the sloop is seen sending him to dock in the Adriatic harbour

Bexos, in a navy T-shirt and white jeans, smiles and chats as the boat docks

The Amazon founder sips from a mug as Sanchez looks ashore

Bezos, Sanchez and their friends were protected by a significant security detail

Bezos and Sanchez prepare to disembark, while Blasberg, in a black T-shirt, watches

Sanchez wore a $400 green maxi skirt from German brand Ottolinger on the outing

The 53-year-old gave her fiancé a warm hug as they prepared to leave the launch

Bezos and Sanchez all smiled as they docked in the Croatian town

The group is seen on Wednesday preparing to disembark at the walled city

Bezos and Sanchez are photographed about to get off the boat on Wednesday

Bezos commissioned the $500 million vessel in 2018 and it first departed from Rotterdam in the Netherlands in February for sea trials.

The Amazon founder took over the ship in May and since then he, Sanchez and their friends have been enjoying a summer at sea – sailing around Majorca, France, Italy and Croatia.

The yacht can accommodate 18 guests, with a crew of 36.

Bezos proposed to Sanchez in May aboard the yacht – which has a wooden figurehead of her.

They have since welcomed on board Bill Gates, surfer Laird Hamilton, Leonardo DiCaprio, Tobey Maguire, Andrew Garfield, the Queen of Jordan, Rania Al Abdullah, Kris Jenner and Corey Gamble.

A young boy in a Croatia football jersey watches as the group enters the city

A large number of security guards surrounded the billionaires group

The limestone paved main street is reached by passing through the 16th century walls

Sanchez turns and talks to Usher as the group wanders through the old city

The streets of Dubrovnik were packed with tourists on Wednesday night, but security guards cleared a path for their party

Perry and Bloom wore coordinated white outfits for the field trip

Usher’s girlfriend of four years, Jenn Goicoechea – mother of two of his children – was not seen with the group

Perry was seen wearing a tan Hermes mini Kelly bag

Usher, who will join Perry in Las Vegas later this year, snapped a stripe in his bright shirt

The 44-year-old Texan took pictures of the spectacular UNESCO World Heritage Site with his phone

Bloom appeared to still be holding a mug from the launch as he and Perry toured the streets

Perry and Sanchez had their phones ready to capture footage of the trip

Sanchez and Bezos walked hand in hand through the streets of Dubrovnik on Tuesday

Perry cut a stylish figure in her pink aviator glasses

The couple beamed with happiness as they explored the city, known as the Pearl of the Adriatic

“Ultimately, when you’re eighty years old and you look back on your life, you want to minimize the number of regrets you have,” Bezos said in an old Esquire interview.

‘That’s what drives people. Not how much money they have.

“It’s regret that I think haunts people at the end of their lives.”