The Royal Cornwall Show is to provide a fitting focus for the county's diamond jubilee celebrations in June.

The show, which runs from June 7-9, will be the climax of a week which kicks off with a four-day bank holiday weekend.

It will feature many jubilee-related events and displays, including one which is being promoted by the Lord Lieutenant's office and will culminate with an exhibition in the BBC Radio Cornwall Theatre at the show.

The "Day in the Life of Queen Elizabeth II" competition is open to school and college students throughout the county to consider the different roles and duties performed by the Queen and to present their thoughts in a visual or written format.

All the winners will be on display at the show and the exhibition will later go on tour around the county.

The Lord Lieutenant of Cornwall, Colonel Edward Bolitho, said: "For Her Majesty the Queen to be able to celebrate her diamond jubilee this year is a quite extraordinary achievement.

"Only Queen Victoria has reigned as long before and it seems almost certain that no-one alive today will live to see another such jubilee.

"We should seize the opportunity to celebrate this achievement with enormous pride. It provides a great chance to bring communities together and to have fun – something that is particularly important in these difficult economic times."

Christopher Riddle, Royal Cornwall Show secretary, said he expected there to be "a tangible jubilee air over the three days of the show".

Stall-holders are being encouraged to adopt a jubilee theme, with a competition to judge the best.

Many regular exhibitors are planning jubilee elements and the show itself will be sending a "loyal" greeting to the Queen.

"The show was first held in 1793 so we have a long history and a long memory," Mr Riddle said. "Records show that we sent a loyal greeting to Queen Victoria in recognition of her jubilee in 1897 so we thought it right and proper that history should repeat itself on this wonderful occasion."

The show also coincides with the half-term school break and head of Visit Cornwall Malcolm Bell is expecting to see an increase in numbers of people taking an extended break in Cornwall, particularly after the current series dedicated to the county on ITV.

Mr Bell said: "They can watch the jubilee celebrations on television from the comfort of their cosy cottage or hotel room and later in the week enjoy the great Royal Cornwall Show – which is an exposition of everything good and inspiring about the county."