TuffRider Ladies Starter Front Zip Paddock Boots | Durable, Easy to Clean Water-Resistant Horse Riding Boots for Women

I'd get yourself a pair of paddock boots. Even if you'll be riding western they will still work. You shouldn't need half chaps so don't worry about those (unless your camp specifically told you to get them). I don't know how old you are but if your feet are still growing I would just get a cheap synthetic pair like these (kids' sizes). I have that same pair and they are comfortable enough to walk in for a while which is good for summer camp. However if your feet are done growing and you think you will continue riding, for that price point you can get a real leather pair which will last longer. Something like these. If you will be riding western and would rather have western boots then I would also suggest Ariat. Their fatbaby boots are relatively cheap and I know some people who swear by them, especially if you have wide feet. However if you have narrow feet I would go with a different style, these are the ones I wear. More expensive but still in your price range and for narrow feet they are fantastic. But again if your feet are still growing I would not get an expensive pair yet. I know people are saying not to order off Amazon but if you can't get to a store in-person you might not have a choice, since your camp is in a week. I would order two pairs of whatever boot you choose, your normal size and then a half size up or down based on if the reviews run big or small. Then return the pair that fits worse. Good luck, you will have lots of fun at camp!