Make sure to take:
- Extra clothing. (eg: a jacket in case it gets cold at night or an extra pair of pants in case something happens.)
- Insect repellent.
- Mini first-aid kit. (If you need some band-aids, you'll be prepared!)
- A towel or two, in case you want to swim or if you shower.
- Sleeping bag.
- Toilet paper?
- A book.
- Food & Drinks.
Since it's camp, I'd say to avoid any technology. Enjoy the beautiful scenery!
Ohh, one more thing, pads or tampons. Those are great to carry just in case. You do NOT want to be caught without them when you really, really need them. xD