Lovely pics of your boy - imagine the mind of him out in the snow: "Gotta get that snowflake, got it, now there is another one, gotta get that one, got it, wow there is still more, gotta get all of them!"
Lovely pictures and really good ones for coming from a cameraphone. My pics always suck from the phone, and forget trying a moving target. The dogs looks as if they are loving it, good for you for finding such a treasure, an enclosed area where the dogs can be dogs-safetly.