I see many comments about California (Southern) kelp forests and sea lions. Southern California outer islands really does have some great diving.
I don't get out much. Besides Northern And Southern California I've only been to Great Barrier Reef and Hawaii for anything warm. I have a very long bucket list, probably longer than anyone here. Many of my buddies are always going to Coz or Bonaire or Curacao or some other exotic localle, they have the time and logistics. It sucks for me because I have to hear about how great all these places are and how I really should go. It sucks for me because I have the money but no time and logistics are bad plus a non diving wife that gets seasick, so far away liveaboards are out. It will be a while before we will be able to get away.
It's also been so long since I've flown internationally, I know a lot has changed and I suppose I will be in for a learning curve on the new travel rules.
But one thing that always comes up when I dive with my buddies here after they come back from one of their trips, and that is they always say they prefer the local diving in California over any other place they've been overall, except for the cold water. That makes me think, we all want what we 'ain't got but once you get it will it be what you thought?
Hawaii to me was OK but after about 5 dives I was kind of bored to be honest. Here I can't get enough. Even If I dove every single day in Norcal I still wouldn't get bored, the ocean here won't let you get bored.
I love to hunt and I'm a big seafood foody, I like to prepare all sorts of delicious seafood dishes from all the game I get, and so that's a big part of why Norcal has such a huge appeal to me. I'm willing to put up with bad vis, cold water, and rough seas for abalone and delicious lingcod.