>>309462$2-300 for classes, $150-250 for gear. You need to buy:
- mask - get one that fits and don't skimp here
- snorkel - a cheap one is fine
- fins - again cheap is fine
- gloves, and boots - If you plan to dive California you are going to need these
It's an amazing hobby and since you are in California you have access to the beautiful kelp forests. The downside is it can definitely be a money sink.