This is one of my favourite photos that I took last year. After the heavy rains in the summer, I took my son down to the local nature reserve in his full waterproofs, knowing that big puddles would be too much of a temptation for a five year old little boy.
As you can see in the next picture, he got quite enthusiastic!
If you click on any of the images you will be taken to the original picture on my Flickr site, and from there browse all the exposure and timing information. Both images are slightly cropped, but are otherwise unretouched.