Many thanks to Trish Garigliano Pope for sharing a photo of Keanu with a little girl on FB and to @keanulatino for tweeting the link. The photo was taken in North Shore, Hawaii in 1990 during the Point Break shoot.
As I looked through her FB page, I found additional photos. There is a photo of Keanu with a two boys here. There are two photos with Patrick Swayze here and here.