Two of the horses which pull open carriages through the streets of Melbourne.
Here they take a well earned bucket of water each. I originally thought that they were being fed, but horse #1, who's already had a bucket, left half of it on the pavement as you can see from the wet patch below.
You can lead water to a horse, but you can't make him drink without slobbering. Mind you, it's not easy to drink with a bridle on.
Apparently there are several operators of horse drawn carriages in Melbourne; if you're interested in taking a ride, follow THIS link to the relevant page of the City of Melbourne's web site.