When we plan youth activities it is easy to spend a lot of time on retreats, Church services, and service projects and forget the need to build relationships with each other. Sometimes we can give the incorrect impression that a Christian can't have fun.
Christian fellowship is a key element to any ministry effort.
It is the setting in which we live out our Faith in Christ as we strive to love others even as He loves us. Remember, regardless of what you are doing as a group, any activity should have a good balance of fellowship, education, worship and service. It's as simple as starting and ending with prayer and acting as Christians in between. Make sure it is something everyone is comfortable doing. Stay together for common meals, group activities, and always use a three-person buddy system.