Quite right too. Cornwall and Devon are seriously BIG. Stick to West Penwith and take your time I never can see the point of hurtling around trying to do everything in a day. Nice compact but thorough guide is Cheryl Straffon's "Ancient Sites in West Penwith" It's available from Meyn Mamvro and the gazetteer is sound and factual (you can ignore the sacred site references quite easily if that is not your bag) It covers stones, graves, fogous, wells and crosses. Well illustrated, accurate directions and grid refs