I have not ridden a Camel, because I feel scared to do so.
Camel is ridden in many parts of Rajasthan, India. In the deserts of Rajasthan, this is the most preferred animal to carry goods from one end to another.
I have seen people taking pleasure rides on Camels, while sight seeing along the old forts of Jaipur and Udaipur.
I agree with Nithya, that it may not be pleasant for the animal.