Apparently, this jolly crew was attending the opening of the Tamar Manoukian Outdoor Centre. Per our photo source, Prince Charles "led the regeneration project," which seems like a nice thing to do. I am all about regeneration, especially when it comes to old buildings and the collagen in my face.
(In all seriousness, you should read about Dumfries House. As we all know from Downton Abbey, the upkeep of these great houses is insanely expensive, so good on Charles for buying it and restoring it and opening it to the public. I want to go visit. It has a secret passage and a (stinky) ghost!)
They look both cold AND cute. Wills, in particular, appears to be thinking, "OH MY GOD STOP TALKING I AM FREEZING."
I figured you'd want to know that (a) her coat appears to be a very wide-wale corduroy, and (b) this is what the scarf she carried during the Jubilee looks like when it's, you know, being deployed as a scarf. It is, of course, the Strathearn tartan (since she is the Countess of).