Third Largest Bay in Mexico: Bahía de Banderas

Bahía de Banderas (Banderas Bay) on the Pacific coast, straddling Nayarit and Jalisco, is Mexico’s third-largest bay. Dimensions: ~132 km (82 mi) long, 55 km (34 mi) wide, 300 km (186 mi) coastline. Rich marine life (dolphins, whales, sea turtles) and major tourism (Puerto Vallarta, Riviera Nayarit).