Terrain: mostly mountains with narrow coastal belt and central plateau
Ambassadors
for Children
ArtCorps
CIS
Concern
America
Explorations
in Travel
the Americas
Friends
of the Orphans
Global Vision International (GVI)
Global
Youth Connect
Go M.A.D.
Habitat
for Humanity
KIDS Worldwide
Nuestros
Pequeños Hermanos
Operation Blessing
Perkin Educational
Opportunities Foundation
Planeterra
Project HOPE
proliteracy
Travel-to-Teach
True Travellers
Society
Voices on the Border
VSO International