Admit it: You never even knew there was an island called Aitutaki until you booked your South Pacific cruise. That’s because this tiny speck of an atoll — the second most visited of the Cook Islands — flies below most travelers’ radar. Those who do stumble upon it quickly realize that it offers a chance to decelerate, with nothing to do but listen to the gentle lap of ridiculously blue waves and savor the unparalleled serenity.
