"It's been my first trip to Great Ormond Street Hospital and I've been so impressed with everything I've seen and the scale of the work that's going on here". "But keep it up, it's great to be active, as everyone's been saying here today".
On Tuesday, Kate Middleton wore a stunning hot pink coat on a trip to Coventry, UK.
She also stopped to admire the sparkly silver sneakers on one little girl.
"It's been wonderful to meet families and young people", Middleton said.
In Sweden, they will spend time with Crown Princess Victoria and Prince Daniel of Sweden, and Crown Prince Haakon and Crown Princess Mette-Marit of Norway, who will join William and Kate on some of their engagements.
Warm welcome Well-wishers wait to greet William and Kate
"A big thank you from me as well because I've loved playing with you all - it's so energetic and exciting to be part of it, so well done for all the hard work", Middleton said.
This prompted Kate to joke that people shouldn't believe everything they read - because she doesn't even like almond milk (via People).
"My main message is congratulations to you all", she said. They are expecting their third child this Apriil.
The new ward allows parents to be able to stay bedside comfortably overnight next to their children while they are admitted.
"You can see the real family element that the hospital brings at such a hard time".