First order:
Bible, paper, pen
Bottled water
Nutritious snacks; granola bars, breakfast bars, trail mix, sandwiches
Something to eat for lunch and possibly breakfast
Pillow(s), warm blanket(s)
Appropriate attire for April (it could rain, it could be cold)
Flashlight
Second order:
Stuff to roast on the fire. (Marshmallows, gram crackers, pot roast)
Basket ball, cards, football, books, game (indoors or out).
Most likely don't need:
Computer
Work from school or work
Fancy clothes or accessories