Woke up at 3:30 this morning to catch a flight to Puerto Rico from BWI. Well worth it: I've been wandering around colonial San Juan since I arrived around noon local time. The old city is small but charming; reminiscent to me more of Cádiz in Spain than colonial cities I've visited in Mexico. Tomorrow I plan to blitz the national historic site and a few of the museums. For now, though, I'm beat.