Great Shots...and Congratulations as you are the FIRST person to get photos of a rhino properly immersed in the indoor pools in this House, though its been open several years now.
I offered a prize for the first photos- but haven't decided what it is yet...
I think its Asha in the paddock (thumbnail) The one in the water is big and has a heavier head/body so I think its Hugo in the pool indoors (and the horn looks familiar too!).