Volunteer tourism, or voluntourism, is no stranger to criticism. Media reports regularly support claims that profits and visitor experience are trumping the needs of host communities.
Volunteer tourism is the intersection between tourism and volunteering. It involves travellers participating in organised short-term voluntary work to help communities, the environment and/or research in the places they visit.
http://theconversation.com/power-to-the-hosts-how-to-fix-volunteer-tourism-93944