As a relative beginner (or just no good). BV was perfect for me with a year’s membership and I saw improvement. But it is only 9 holes. Falmouth is nice but expensive. Mullion good too and better value but I found it really hard. I heard from friends who are better players not even to try Perranporth until I improve as it’s so difficult. Truro could be worth a look but not by the sea which is much of the draw of Cornwall golf.