We don't have visiting day at my camp because the sessions are only 1-2 weeks long. Parents of campers who stay more than one session have the option of visiting them in between sessions, but there is no official "visiting day". Some parents come and take their kids out to lunch or home for a night if they don't live too far away, but there are many campers who stay at camp and that's fine too.
The kids who go with their parents sometimes tend to get homesick, especially after watching other kids get dropped off with their parents.
