If you find yourself near Sacramento and have a little time, take a detour into Isleton, Andrus Island and the San Joaquin River Delta. It's miles and miles of windy levees amidst agricultural land. The delta began to form around the end of the last ice age—about 10,000 years ago. And aside from providing much of the water for California, it's just a cute little anomaly in the area. Like a California bayou—or a California Holland.