It will take me 23 hours and 45 minutes to get to Ushuaia, the southernmost city in the world. It will take me 23 hours and 45 minutes just to get to the starting point for my trip to Antarctica. That's four flights from San Francisco and three flights back home. The journey is long, there are many legs, and I'm not in love with flying. But, that's what it takes, and that's what I'll do - all for the spirit of adventure.