Rod Stewart looks relaxed and happy with sons Liam and Alastair on yacht in Croatia

He has been enjoying an idyllic break in Croatia with his beloved family.

And Rod Stewart looked happy and relaxed as he spent an enjoyable day aboard a luxury yacht with his family in Split on Tuesday.

The legendary rocker, 75, was every inch the proud dad as he watched his sons Liam, 25 – whose mother is Rod’s ex wife Rachel Hunter – and Alastair, 14 – who Rod shares with wife Penny Lancaster – lark about on deck. 

Lots to smile about: Rod Stewart looked happy and relaxed as he spent an enjoyable day aboard a luxury yacht with his family in Split, Croatia on Tuesday

Fun in the sun: The legendary rocker, 75, was every inch the proud dad as he watched his sons Liam, 25 and  Alastair, 14, lark about on deck (pictured with Liam's girlfriend Nicole Artukovich)

Fun in the sun: The legendary rocker, 75, was every inch the proud dad as he watched his sons Liam, 25 and  Alastair, 14, lark about on deck (pictured with Liam’s girlfriend Nicole Artukovich)

The Handbags and Gladrags singer looked typically stylish for his day at sea, clad in a white linen shirt with a beaded necklace.

The star wore his locks in his signature spiky style as he took in the scenic views.

Liam showcased his hunky frame in a pair of swimming shorts as he chatted with his long-term girlfriend on deck, while Alastair joked around.

Not seen was Rod’s wife Penny, 49, and their youngest son Aiden, nine.   

Refreshed: The age-defying rocker looked relaxed as he took in the scenic views

Refreshed: The age-defying rocker looked relaxed as he took in the scenic views

Rock on: The Handbags and Gladrags singer looked typically stylish for his day at sea, clad in a white linen shirt with a beaded necklace

Above deck: The star wore his locks in his signature spiky style as he took in the scenic views

Rock on: The Handbags and Gladrags singer looked typically stylish for his day at sea, clad in a white linen shirt with a beaded necklace

Rod and Penny’s yacht break may be a delayed anniversary trip for the loved-up couple, who celebrated 13 years married last month.  

They celebrated their wedding anniversary and marked the occasion with a takeaway meal and a glass of wine in the back of their car. 

Earlier this year, Rod gushed that his wife Penny is ‘everything’ to him, as he reflected on their relationship. 

Relaxed: The brothers and Nicole were having a lovely day at sea aboard the yacht

Relaxed: The brothers and Nicole were having a lovely day at sea aboard the yacht

Close: Liam and his longterm love looked close as they relaxed onboard

Close: Liam and his longterm love looked close as they relaxed onboard

Off we go: Alastair looked focused as he took in the scenic views in Croatia

Off we go: Alastair looked focused as he took in the scenic views in Croatia

Look over there! Liam pointed out something to his girlfriend from the deck

Look over there! Liam pointed out something to his girlfriend from the deck

Kicking back: Nicole enjoyed a relaxing read as she kicked back on the yacht

Kicking back: Nicole enjoyed a relaxing read as she kicked back on the yacht

The singer looked back on their marriage in a candid interview with The Mirror, and admitted she helped him become a better person.

Of their two decades of marital bliss, he said: ‘I’m stunned that Penny has kept me around for 20 years.

‘They have not invented the words for how I feel about her. She is everything.’  

 He went on to say that she helped him understand the importance of a long and happy marriage, as he admitted: ‘It took me a while to learn, because I have been a scallywag in the past.’ 

Snap happy: Nicole looked relaxed as she snapped a stunning photo

Snap happy: Nicole looked relaxed as she snapped a stunning photo

Fun times: Liam looked in good spirits as he larked around with a pal

Fun times: Liam looked in good spirits as he larked around with a pal

Fun times: Liam looked in good spirits as he larked around with a pal

Laugh out loud: The pair couldn't contain their laughter as they whiled away the afternoon

Laugh out loud: The pair couldn’t contain their laughter as they whiled away the afternoon

Play fight: The pair jokingly wrestled as they enjoyed another day at sea

Play fight: The pair jokingly wrestled as they enjoyed another day at sea

Banter: Liam smiled as he enjoyed the day with his loved ones on their break

Yay: Liam kept his tresses back from his face with a half updo

Banter: Liam smiled as he enjoyed the day with his loved ones on their break

Rod explained that being with Penny made him learn ‘good manners’ which he also tries to instil on his children, while he feels he helped her gain ‘a lot of confidence’ during the course of their relationship.

Penny and Rod began dating in 1999 before marrying eight years later in the medieval monastery La Cervara in Portofino.

After their wedding on 16 June 2007, the couple enjoyed their honeymoon on the Lady Ann Magee yacht, which was moored in Portofino, and they share sons Alastair, 14, and Aiden, nine, together.

Cheers: The holiday may be a delayed anniversary trip for Rod and wife Penny Lancaster, 49, who celebrated 13 years married last month

Cheers: The holiday may be a delayed anniversary trip for Rod and wife Penny Lancaster, 49, who celebrated 13 years married last month