Yes — you can enjoy several Madeira hikes without hiring a car. PR11 Vereda dos Balcões, for example, is relatively easy to reach from Ribeiro Frio using public transport or an organised tour. Other popular routes can be reached by bus, taxi, transfer services or guided hiking tours, depending on where you are staying. If transport is limited, a guided tour can be particularly convenient, as it may include hotel pickup, trail transfers and assistance with your hiking reservation.