An overnight camp does not end when the last activity ends. You are responsible for a place to sleep, food, personal care, evening choices, night concerns, and a safe return home.
A child may be brave at canoeing and still feel upset at bedtime. A quiet health issue may become important when medicine, meals, sleep, and activity all change. Your plan must support the whole person, not only the timetable.
Choose the main purpose: a first sleep-away experience, a traditional summer week, a specialist arts program, a sports camp, or another clear offer. Add the relevant activity guide to this residential guide.
Be honest about your scope. A recreational overnight camp is not a hospital, treatment centre, or specialist care service unless it is actually set up and authorized for that role. Do not accept needs you cannot safely support just to fill a bed.
A useful first offer might be one short session at an established approved residential site. That does not remove your duties, but it may avoid trying to build facilities and a new program at the same time.
Your task: Write everything your camp promises between check-in and departure, including the hours when participants are asleep.