Junction for ZIH Airport and Ixtapa Northbound traffic curves to the north. After the curve, continue straight, then turn west to get to the ZIH airport (about 1 km.) or continue straight (north) to go on to Ixtapa and Zihuatanejo. This portion is a four-lane divided highway. La Mira to Petatlan From the junction of Highway 37&200 at La Mira in Michoacan to Petatlan in Guerreo.