We will be spending a few days in Cornwall (arriving from Portsmouth), and strongly prefer not to rent a car. What town would you suggest as a good base to explore and make day trips from using public transportation (bus is fine)? We would like to visit Port Issac, and see some of the coastal area that has been shown on Poldark. We don't care about Poldark specific things, just the general beauty of that coastal area. We would be interested in visiting anywhere with shorter, easy hikes to experience the scenery. Thanks in advance for your help!