Where can i go for a riding excursion?

I have been riding horses for 13 years and one thing I know for sure I am passionate about is animals. I have heard about opportunities to swim with extraordinary animals and even ride them. I know about some thing out of country such as an ostrich farm in South Africa where you can ride ostriches. I am very interested in doing different things like this but I am unsure where to find these things. I would LOVE to ride an elephant or a camel or ostrich or swim with whales or sharks or anything really. Any suggestions or referrals to unique places inside the country?