Get a wax before the trip/camp. Get a wax kit and wax your legs, underarms, face etc. before you go. You will probably be too busy to shave, and this takes a little bit of worry away from your trip. Bring a big enough wash bag to contain all your toiletries for when you go to the bathroom block.
Make sure you bring chap stick or a lip butter to keep your lips clean, healthy, and moisturized. Add a touch of concealer, some waterproof mascara and a dab of nude or light pink/red lip gloss; this should be all you need for make up while traveling. If you don’t want to add mascara, consider just curling your eyelashes. But remember you are camping: you don’t need to look your best! For an extra little glow, smile and dab a little bit of Vaseline on the “apples” (fleshy part)of your cheeks. But don’t use too much or your face will feel oily. Keep your eyebrows groomed. A tiny dab of Vaseline and a comb through with an old toothbrush will keep them in shape. Take care not to accidentally use the same toothbrush to brush your teeth after! Cut and file your nails and toenails before you go, and also put on a clear coat of polish. Your nails will be shiny and well groomed, but not overdone for camping.
It will make changing into your swimsuit easier when it is time to swim
If you don’t want to risk losing or breaking a good camera consider bringing a disposable camera which is a great cheap alternative.