Canadian Prime Minister Justin Trudeau is in Ireland with his family for an official visit, and his presence on Irish soil is prompting some amusing reactions.

The Canadian leader, along with his wife Sophie Gregoire-Trudeau and their young son Hadrien, touched down in Dublin on Monday, where they were greeted by the Canadian ambassador Kevin Vickers.

News of the politician's arrival in Ireland left some commentators all hot and bothered, with one observer describing the nation's reaction as "spun giddy." 

Singer-songwriter James Vincent McMorrow joked that Dublin is feeling "25% dreamier today".

The prime minister was welcomed by Taoiseach Leo Varadkar and much attention was drawn to Varadkar's choice of socks.

Trudeau, who is famed for his fondness for novelty socks, was well and truly out-socked by Varadkar, who donned a pair of Canadian-themed, maple-leaf-adorned socks for their meeting at Farmleigh House.

Leo Varadkar out-socks Canadian Prime Minister Justin Trudeau

Later, Trudeau looked delighted as Varadkar presented him with a personalised Irish rugby jersey and a matching pair of socks.

There was also time for some running:

There was also time for some running: