You may have noticed that start and end times are required in ActivityHero. If your program is a residential program or sleepaway camp, you are not required to enter start and end times.
To indicate that you are an overnight camp, first choose either "overnight/residential" or "overnight/travel" as the Activity category.
Then on the session, leave the start and end time blank. It will look like this in the session manager.
In your listing and in the search results, it will look like this: