Carcross Yukon - The Duke and Duchess's royal tour of Canada has already seen them hang with Canadian Prime Minister Justin Trudeau, and Kate break her public eating rule with a taste of geoduck, but the fourth day saw them following in the footsteps of the Queen and Prince Philip.
While visiting the Canadian province of Yukon for two days of engagements, Kate and William decided to visit the White Pass & Yukon Route, at Carcross.
The royals made the last minute decision to see the trains after apparently being told the Queen and Prince Philip had travelled on them when they visited in 1959.
After riding a steam train, the royal couple got off and had to scale the bridge to get back to dry land.
Don't fall in!
We imagine it's pretty cold.
This royal tour just gets better and better.
Ciarra Sheppard.