What can be said that hasn't already been touched on already?
Scroll through the reviews and you'll quickly see that Elephant Nature Park is one of the "good guys" working hard to rescue elephants, and improve the lives of those they can't.
If signing on with an ethical rescue isn't a compelling enough reason, at least do your due diligence to ensure you're not inadvertently supporting one of the camps that mistreat the elephants in their care. (Worth noting: some have gone to great lengths to disguise themselves as a rescue, when in fact, they are in it purely for the profit.)
While a reputable rescue will never allow you to ride an elephant, there are so many other experiences to be shared with these creatures. In my case, I elected to pay extra to do the "Sunshine for Elephants" itinerary offered through the ENP at one of their affiliated camps. If financially feasible, I would highly recommend splurging on this as the smaller visitor-to-elephant ratio made for an extremely intimate experience. (We were capped at 6 visitors, 4 elephants and their respective mahouts.)More