POWER couple Beyoncé and Jay Z have been cruising the waters of the Mediterranean on board a $2million-a-WEEK superyacht.

The superstars, who are estimated to be worth a combined $1.4billion, celebrated Beyoncé’s 39th birthday aboard the incredible boat with their children, Blue Ivy, eight, and twins, Rumi and Sir, three.

Jay Z and Beyoncé cruising off the coast of Croatia with their twins Rumi and Sir, threeCredit: Splash News

Beyonce and Jay-Z – real name Shawn Carter – were spotted doting on their kids off the coast of Cavtat, Croatia.

They have been cruising around on the 351-foot long and 45-foot high luxurious yacht called Lana for Beyoncé’s week-long birthday bonanza vacation.

One of the largest vessels built by an Italian shipyard, Lana is one of the most impressive superyachts on the water.

Boasting a soft color pallete to create a sense of serenity throughout, Lana’s high ceiling and sculptural elements replicate the motion of the sea.

The superyacht is one of the most luxurious in the world and features, a jacuzzi, spa, rooftop pool and cinema room among some of its many featuresCredit: www.imperial-yachts.com

The Carters rented the new superyacht for $2million a weekCredit: www.imperial-yachts.com

The cinema room has a superior audio system and is perfect for curling up to watch a movieCredit: www.imperial-yachts.com

Inside there are eight staterooms and one master suite, each with an en-suite and decorated in an individual color scheme.

Lana also has plenty of entertainment to keep her VIP guests occupied during their stay.

There is a luxurious spa with treatment rooms to unwind and indulge, a well-equipped gym with professional trainers, a cinema room with an impressive audio system and an outdoor pool to savor sunny days.

The superyachct also has a unique Beach Club and two folding terraces, which offer all the state-of-the-art toys including jet skis, wakeboards, SEABOBs, water skies, inflatable paddleboards and fishing equipment.

Lana is one of the newest superyachts to hit the waters this yearCredit: www.imperial-yachts.com

The superyacht has eight impressive staterooms each with an ensuite and can sleep up to 12 peopleCredit: www.imperial-yachts.com

Lana can also host up to 34 crew to make sure the Knowles-Carter clan has their every need catered to.

The Crazy in Love hitmakers headed out on one of Lana’s speed boats during the seven day vacation in Croatia with their youngest two children.

Beyoncé looked ever stylish in gold hoop earrings, blue shirt with a white print and wicker hat.

She completed the look with berry colored lipstick and metal framed sunglasses.

Lana boasts a pool on her roof with an advanced warming systemCredit: www.imperial-yachts.com

Jay kept his hair back with a black bandana and opted for a white and blue summer shirt.

The family protected themselves from coronavirus by wearing face masks when on dry land, with Beyoncé’s mask sporting a white lined smile across it.

Her much-needed break came after she was recently spotted filming in the Hamptons and the release of her visual album, Black is King on Disney+.

The entertainer spoke about Black Is King in an interview with Good Morning America and revealed all the work that went into it.

Beyoncé doted on her twins Rumi and Sir during the trip on the speed boatCredit: Splash News

Jay opted for a black bandana to keep his hair back and a white summer shirtCredit: Splash News

Beyoncé looked effortlessly chic in a flowing blue blouse and gold earringsCredit: Splash News

Jay and Beyoncé with daughter Blue Ivy, 8Credit: Instagram

She said: “It’s been a year in the making. I worked with a diverse group of very gifted directors, actors and creatives from all over the world to reimagine the story of The Lion King.

“The narrative story unfolds through music videos, fashion, dance, beautiful natural settings and raw, new talent.”

She continued: “But it all started in my backyard. So, from my house to Johannesburg, to Ghana, to London, to Belgium, to the Grand Canyons. It was truly a journey to bring this film to life.”

It was Beyonce’s first visual album since Lemonade in 2016, which topped many best albums list.