My grandfather used to take us sledging down the dunes at Gwithian, just around the corner, tea-trays being the sledges - great fun for young kids and Godrevy was always a favourite for the rock pools. Did you discover the 'Bucket of Blood' pub then....
Perranporth is interesting to cover as well, the remnants of the old church above the golf course and the rest of the church moved 3 miles inland to Perranzabuloe, nearby pub of the Bolingey as a hostelry..... the church has fabulous roofing and mediaeval gravestones on the wall that I would love to have in a dining room. Also, there's the ancient chapel just exposed from the sands....