Yes, I echo Palomine's thoughts. But to help you a bit, a few more questions -
- who do these horses belong to, and what input is the owner giving to their care & welfare?
- what are your responsibilities supposed to be and who will you be working with?
- who sets out the 'programme' or objectives for the kids? You or someone else?
- is the horse-riding just one part of a multi-activity camp?
Give us some more info, and we'll give you more advice