Scattered across turquoise seas in a burst of emerald, the archipelagos of the South Pacific are fringed with white-sand beaches, limestone cliffs, and some of the most pristine coral reefs in the world. Escape to this tropical paradise, cruising between far-flung isles aboard the National Geographic Orion to explore places that few ever seeā€”from the Marquesas to Tuamotu and the Southern Line Islands. Dive into glittering lagoons, encounter a wealth of marine life and bird species, and get to know the exuberant Polynesian cultures and friendly peoples that make their home here.