The Duke of Cambridge described his three-week-old son Prince George as "pretty loud and of course extremely good looking" during a speech at the Anglesey Show.
Prince William said the Duchess of Cambridge and his son "would have loved" to have attended the agricultural show in North Wales with him today.
He added: "I have to say that I thought search and rescue duties over Snowdonia were physically and mentally demanding but looking after a three-week-old baby is right up there."
He went on to thank the islanders of Anglesey from the "bottom of my heart" for making him and his wife so welcome as they made their first home in North Wales together, which he described as an "immensely special place for us both".
He said: "I know that both of us will miss it terribly when my search and rescue tour of duty comes to an end next month and we have to move elsewhere."
More top news
Sir John Vickers proposed reforms to make the financial system safer. Now he has accused the Bank of England of "going easy" on the banks.
Widespread frost expected overnight as temperatures drop below freezing ahead of a chilly start to the week.
Obese people make a mountain out a molehill - because they see distances as further and hills as steeper than slim people, say scientists.