Here are the visa requirement for Cosmic Volunteers host countries:
Costa Rica: No visa required for visitors of most western countries. Maximum stay of 90 days per visit.
Ghana: Visa required. Must be obtained before arrival. Three-month initial visa. Visas can be extended while in Ghana.
India: Visa required. Must be obtained before arrival. Maximum stay of 6 months (180 days) per visit.
Nepal: Visa required. Can be obtained at airport upon arrival. Maximum stay of 5 months per calendar year.