Individuals Mission Trips: $1000 to $3000: El Salvador: Clean Water/Sanitation: 1 to 2 weeks: Senior Adults: December - Browse by Continent : MissionGuide.globalIndividuals Mission Trips: $1000 to $3000: El Salvador: Clean Water/Sanitation: 1 to 2 weeks: Senior Adults: December - Browse by Continent : MissionGuide.global