Sr. High Mission Trips: 1 to 2 months: Eastern Asia: Evangelism- Open Air/Street: over $3000: Mongolia: Groups: September - Browse by Start year : MissionGuide.globalSr. High Mission Trips: 1 to 2 months: Eastern Asia: Evangelism- Open Air/Street: over $3000: Mongolia: Groups: September - Browse by Start year : MissionGuide.global