Hi guys Im planning a 3 week trip (inc travel time) for 2 to Hawaii and California in December from Australia and I cant decide which cities to head to. Thinking 6 or 7 nights in Hawaii (Oahu) and the rest of the time in Vegas/SF? Which cities to visit apart from Vegas? And how many nights would be ideal? Im thinking of squeezing football/baseball/basketball game if I have time and the wife wants to shop. We like hiking too but I heard Yosemite will be snowing around this time of the year.