Kilted-out king! Charles proudly dons red tartan as he arrives in Caithness for a series of visits

King Charles was dressed in full tartan for a day of engagements related to the nuclear industry in Scotland today. 

Charles, 76, was all smiles as he arrived in Caithness in the north of Scotland on Monday, July 28, with the monarch wearing a red tartan kilt as he stepped off at Scrabster Harbour

Upon arrival, he was introduced to the crew of the Pacific Heron, a second-generation purpose-built nuclear transport vessel.

He unveiled a plaque for the ship after Charles met local sea cadets and Royal National Lifeboat Institution volunteers from the area. 

The unveiling on Jubilee Pier came ahead of a reception in the nearby Fish Market Hall, where the King spent time meeting staff from the nuclear industry and local community members from Thurso.

A beaming Charles shook hands with members of the public before making his way to the reception for Caithness Communities as the King appeared in good spirits while continuing treatment for an undisclosed form of cancer

The visit was hosted by the Nuclear Decommissioning Authority to mark the 70th anniversary of the Dounreay Nuclear site, the 50th anniversary of the establishment of the Pacific Nuclear Transport Limited (PNTL) company, as well as the 20th anniversary of the Nuclear Decommissioning Authority.

It comes after Charles attended Sunday service at St Mary Magdalene Church in Sandringham, Norfolk - without the Queen by his side. 

King Charles was dressed in full tartan for a day of engagements related to the nuclear industry in Scotland today

King Charles was dressed in full tartan for a day of engagements related to the nuclear industry in Scotland today

The King, 76, appeared in high spirits at a reception for Caithness Communities hosted by the Nuclear Decommissioning Authority at Scrabster Harbour in Thurso

The King, 76, appeared in high spirits at a reception for Caithness Communities hosted by the Nuclear Decommissioning Authority at Scrabster Harbour in Thurso 

The venue is known for being a regular place of worship for members of the  royal family, particularly during Christmas time. It is not known why Camilla, 77, wasn't present for yesterday's service.

However, the King's qife attended the annual King George Racing Weekend in Ascot earlier this week. Camilla picked an elegant, off-white ensemble for the occasion. 

She was also seen recently attending the annual Sandringham Flower Show alongside Charles.

The royal couple arrived at the flower show on their estate in a carriage that once belonged to Queen Victoria.

They were all smiles as they rode the route lined with members of the public and waved to them as they passed by. 

Looking well and relaxed in a smart suit alongside his wife, elegant in a black and white flower print dress, Charles looked delighted to be there again after being forced to miss last year's event due to his cancer treatment.

Many in the crowds commented on how delighted they were to see him back.

While Camilla did not join Charles for today's engagements in Scotland, she attended the Sovereign's Garden Party along with the King at the Palace of Holyroodhouse earlier this month. 

Ahead of the reception, Charles unveiled a plaque for the Pacific Heron, a second-generation purpose-built nuclear transport vessel

Ahead of the reception, Charles unveiled a plaque for the Pacific Heron, a second-generation purpose-built nuclear transport vessel

Charles shook hands with members of the Royal National Lifeboat Institution volunteers from the area

Charles shook hands with members of the Royal National Lifeboat Institution volunteers from the area

Charles shares a laugh with guests at the Caithness Communities reception at Scrabster Harbour

Charles shares a laugh with guests at the Caithness Communities reception at Scrabster Harbour 

The King made sure to say hello to members of the public that gathered at Scrabster Harbour to greet him

The King made sure to say hello to members of the public that gathered at Scrabster Harbour to greet him 

The visit was hosted by the Nuclear Decommissioning Authority to mark the 70th anniversary of the Dounreay Nuclear site, the 50th anniversary of the establishment of the Pacific Nuclear Transport Limited (PNTL) company, as well as the 20th anniversary of the Nuclear Decommissioning Authority

The visit was hosted by the Nuclear Decommissioning Authority to mark the 70th anniversary of the Dounreay Nuclear site, the 50th anniversary of the establishment of the Pacific Nuclear Transport Limited (PNTL) company, as well as the 20th anniversary of the Nuclear Decommissioning Authority

Today's visit to Scotland comes almost one month after Charles marked Holyrood Week in Ediburgh

Today's visit to Scotland comes almost one month after Charles marked Holyrood Week in Ediburgh

The couple flew to Edingburgh for Holyrood Week, during which the monarch meets Scots from all walks of life. 

Camilla picked a blue Fiona Clare dress and coat for the garden party that was also attended by Princess Anne. 

Anne donned a mid-length floral blue dress with a matching blue blazer and chic fascinator. 

The King's visit to Caithness comes on the same day the British Prime Minister Sir Keir Starmer joined Donald Trump for an impromptu press conference on the steps of the US president's golf club in Ayrshire. 

Lady Victoria Starmer looked bemused as Mr Trump hailed her as a 'respected person all over the United States' during the leaders' meeting in Scotland today. 

During the conference, the American president could be heard saying: 'We want to make the Prime Minister happy.'

Referring to Lady Victoria, the Prime Minister's wife, Mr Trump added: 'She's a respected person all over the United States.

'I don't know what he's (Sir Keir) doing but she's very respected, as respected as him. I don't want to say more, I'll get myself in trouble. But she's very, she's a great woman and is very highly respected.'