Great walks from Cape Cornwall to the Geever tin mine along the coastal path or alongside the easier track overlooking the sea and farmland - both stunning walks looking out to sea and also good birdwatching country. You can feel history as you walk!
If you want to say you have seen Lands End, but don't want to pay to visit and run the gauntlet of the 'amusements', Cape Cornwall is your best bet. Park in the NT car park, get a nice cup of tea (in a proper mug for £1) from the van in the carpark, walk out to the monument and admire the view of Lands End in the distance. Lovely.