Spinnaker might be great - I don't know them - but if you're in the market for sailing lessons in SF Bay I can highly, highly recommend Club Nautique out of Alameda[1].
The quality of instruction is very high, with a focus on safety and building a strong foundation of knowledge. Especially if you ever might want to charter in remote locations or sail across oceans, it's really an excellent foundation.
The quality of instruction is very high, with a focus on safety and building a strong foundation of knowledge. Especially if you ever might want to charter in remote locations or sail across oceans, it's really an excellent foundation.
[1]https://www.clubnautique.net/school/introduction-to-sailing/