The guest book has opened at Government House, online and in Victoria, for people to send their greetings to the Duke and Duchess of Cambridge on the birth of their son.

Lieutenant Governor Judith Guichon announced Monday that a signing table is available at her official residence. Messages may also be sent online via the .

"As third in line, he is the future King of Canada," Guichon said in a statement. "Let us join together in celebration across the province to mark the birth of our future King."

The Lieutenant Governor's full statement follows:

"On behalf of the people of British Columbia, I offer my congratulations and best wishes to Their Royal Highnesses The Duke and Duchess of Cambridge on the birth of their son. This is a special time for the Duke and Duchess and I wish them much health and happiness as they embark on their parenting journey.

"As the third in line, he is the future King of Canada. For Canadians, this historic occasion is an opportunity to reflect on our strong and enduring connection to the Crown - an institution that embodies the stable character of our democracy. It is an important symbol of unity and stability and represents the vitality of our traditions, the permanence of our institutions and the continuity of national life.

"Let us join together in celebration across the province to mark the birth of our future King."