Prince William told the crowds at the Anglesey Show today that he and Kate will miss the area terribly when his posting comes to an end next month.
The duke was on his second official public appearance since the birth of Prince George.
He watched gundog and falconry displays, before meeting local young farmers in North Wales.
In a speech he said he was sorry Kate couldn't be there and joked that his son was "very good looking."
William in on a three-year tour as an RAF search and rescue helicopter pilot at RAF Valley in Anglesey which finishes at the end of September.
More top news
The winds have eased already, but we'll see wintry flurries over the mountains and icy patches on the roads!
The Valleys is home to some of Wales' most successful entertainers and personalities.
The South Wales Valleys once produced coal, but now they're producing wind energy - with the biggest onshore windfarm in England and Wales.