In a place where time seems to pass a little more slowly, where the locals are unpretentious and laid back, where happy hour is an all-day affair, where you're free to roam naked on the beach and feel the rush of the strong Pacific Ocean against your bare skin, it's all too easy never to want to leave. At least, that's how I felt about Zipolite, a tiny beach bum town in the Mexican state of Oaxaca.