Tourism became Polperro's main industry during the 20th century. The village is accessible by air via Plymouth or Newquay, by train via Looe railway station, by road and by boat. It was estimated that the village received about 25,000 visitors a day during summer in the 1970s. Visitors are no longer permitted to drive cars into the village, having to leave them in the main car park at Crumplehorn to the north of the village and walk through the half-mile length of the village to its harbour. The village's quaint but narrow streets make driving difficult. There are horse and cart rides and milk floats disguised as trams for those who prefer not to walk.