Ash
I've visited Monterey three times from Australia. Your wife will enjoy Carmel, just make sure she has a very low limit credit card, or your golf could be very expensive.
. Yosemite is about a day's drive away, but you've probably seen that many glaciated valleys in the South Island that it won't have the same impact as for some of us.
If your flight times are similar to those from Oz, you will land in San Francisco first thing in the morning, before you left! (remember that date line thingy - my nephew forgot about this when he travelled, and had a hire car and hotel room booked for the next day
). You will also have just 'enjoyed' a 13 hour flight. I recall visiting Alcatraz on the first day in the afternoon, and my wife and I both falling asleep at 3pm in the theaterette. Try to stay in the daylight - the jet lag and time delay will get you.
Because of this, I stroingly suggest you don't schedule the most important parts of your trip (eg the golf) on the very first day or two. You will be going through the motions.
All the best with the plans
James B