Falmouth's Gyllyngvase and Swanpool beaches offer sheltered beachbreak A-frames that tend only to work in larger SW storms. If it's working it'll be busy. Beginner friendly and nothing particularly special, other than a nice reef right to the west end of Gyllyngvase that works mid to high for intermediate+ only. Works tide round, and Swanpool is generally a bit smaller, but also rockier.
Parking by the beaches and full facilities in town.