My wife and I have been caravaning for many years and have visited Cornwall on three occassions and each time very disappointed with area< it is very expensive, hilly and in our opinion a rip off for holiday makers.
We often visit south Devon which is a total difference - plenty to see, visit and with children rasonabley cheap. We stay at Widend Caravan Site at Paignton which is a quiet site with outdoor pool, small bar area for evening socialising (entertainment area for children only), very clean toilet/shower facilities, small shop and very central for Torquay, Paignton, Brixham, Dartmouth and Totness. The site is a private family run affair and will only accept family parties. Far superior and more friendly area. The site brochure for Widend does not do it justice.