I had a great experience with R4R. The organization focuses its efforts on providing food in a transitory camp in Skala Sikamineas, where boats arrive regularly. They have clean and comfortable accommodation for 10€ a night, which is cheap for northern Lesvos. Landings are well organized. Working with R4R means mostly to attend landings and help the people coming off boats, cooking and distributing food at the camp. I learned a lot from this experience and strongly recommend volunteering with them. It is a good work rhythm and experience. People in Skala are welcoming. You quickly become attached to this place and the passionate volunteers and coordinators of R4R. It is a small non-profit, so you feel you have a direct impact.