What does "Add Custom Stay" mean in the Trip Planner?

Each stop allows you to select a campground from AdventureGenie's database. However, if you plan on staying somewhere that is not stored in our database, you can simply type in the name of the place you want to say (e.g., Aunt Mary's Driveway or Walmart Parking Lot, etc.).  The map pin will remain on the main stop name and not at your exact custom location.