Shirtless Justin Trudeau - photobombing beach wedding, hiking in forest - becomes a summer internet fascination

Sightings of a shirtless Justin Trudeau are causing something of a stir across Canada and internationally this summer.

The prime minister was most recently photographed shirtless while taking a break from surfing and simultaneously photobombing a couple getting married on a Tofino, British Columbia, beach.

A Vancouver Island wedding photographer, Marnie Recker, tweeted the photo of Trudeau on Saturday with his surf board standing several metres away from the bride, generating plenty of retweets and fanfare online.

It wasn’t clear exactly when the photo was taken, but Trudeau has been in British Columbia for the past week.

The 44-year-old Trudeau took office in November and carries one of the most famous names in Canadian political history. His late father was prime minister for the better part of 16 years, between 1968 and 1984, and remains the rare Canadian politician who is recognised in America.