voluntourismnoun [ U ]
uk/ˌvɒl.ənˈtʊə.rɪ.zəm//ˌvɑː.lənˈtʊr.ɪ.zəm/a type of holiday in which you work as a volunteer (= without being paid) to help people in the places you visit:
He commented that voluntourism is sometimes about the fulfilment of the volunteers themselves, not necessarily what they bring to the communities they visit.