Buses in Cornwall and the 300 Open Top Bus!
Wonderful bus – what views! And you can get on and off to walk, explore or do whatever you like. It goes to Lands End, Zennor (great place with the Tinners Arms Pub, a tea room attached to the hostel, The Wayside museum and flour mill. Plus absolutely stunning parts of the Coastal Footpath.)
http://www.firstgroup.com/ukbus/devon_cornwall/
There are other buses! You need to get the timetable from the Visitor Information Centre or the Bus station.