Hiking in the alva river: Water routes,Pedestrianismo no vale do alva: Rotas de água M. Salgado I.P. Oliveira J.A. Martins Publication Journal: Journal of Tourism and Development Year of Publication: 2019 Volume: 32 Pagination: 143-157 Identifiers ISSN: 21821453 16459261 ISBN Number: 21821453 16459261 Other Numbers: 2-s2.0-85076739528 Alternative titles Google ScholarBibTeXRIS Locators