What is the difference between open groups and private groups?
Open groups are those where participants register themselves individually to take an activity and therefore no one knows each other until the day of the event. Private groups are those where participants book an activity on a private basis. All participants know each other and there are no external participants in that particular activity. An example of that would be the following: a family, a bachelor’s/bachelorette’s party, a couple, an Depending on the kind of relationship.