Bounded by the Puget Sound to the west and Lake Washington to the east, and surrounded by forests and mountains, Seattle, Washington boasts a stunning location. But the largest city in the Pacific Northwest is as much an homage to human ingenuity as it is to natural beauty. From logging to shipbuilding to aircraft manufacturing to modern-day software and biotech development, the Emerald City has worn a succession of industrial hats, birthing the likes of Amazon and Starbucks—not to mention music legends Jimi Hendrix and Nirvana—along the way. Visitors are spoiled for choice of things to do in Seattle, with iconic attractions like the waterfront, Space Needle, Chihuly Garden and Glass and Pike Place Market all easily accessible. "Local" and "sustainable" are words to live by in Seattle, an ethos reflected in the profusion of fresh-seafood restaurants, independent coffee roasters and quirky boutiques that are dotted around the city, awaiting a taste or visit between sightseeing.

Water and fire reign here: This is a land of verdant rain forests bisected by sparkling falls. But the fiery element flares along the volcanic coast of Kohala and the roaring furnace of the Kilauea volcano: Lava has continued to seep from the crater since its last eruption in 1983. Nature is Hilo's blessing, as well as its challenge. The beautiful crescent bay served as a funnel to two major tsunamis that battered the city—tragedies that are never forgotten and hopefully never repeated. (Hilo's Pacific Tsunami Museum remains a leader in safety education.) Once a busy fishing and farming area, Hilo blossomed into a commercial center for the sugarcane industry in the 1800s. Today’s town—its waterfront rebuilt since the last destructive wall of water in 1960—flourishes as a hub of galleries, independent shops, farmers markets and homegrown destination restaurants. A world-class astronomy center has joined this mix, underlining the awe unfolding through the telescopes atop Mauna Kea (the…

Honolulu, on the island of Oahu’s south shore, is capital of Hawaii and gateway to the U.S. island chain. The Waikiki neighborhood is its center for dining, nightlife and shopping, famed for its iconic crescent beach backed by palms and high-rise hotels, with volcanic Diamond Head crater looming in the distance. Sites relating to the World War II attack on Pearl Harbor include the USS Arizona Memorial.

Get ready for lush fern grottos, grand canyons and the dramatic cliffs of the Na Pali Coast (experienced by helicopter and from the decks of your Holland America ship during an afternoon of scenic cruising). Sample shore excursions: Kipu Falls Zipline Trek; Kauai's Grand Helicopter Tour.

Once the playground of Hawaii's royalty, Kona is synonymous with the famous coffee that grows on the slopes of dormant Hualalai. Here, too, is Parker Ranch, the largest privately owned ranch in the U.S. Sample shore excursions: Kona Outrigger Canoe Adventure; Parker Ranch; Big Island Helicopter Spectacular.

Christmas Island is one of the Line Islands, and part of Kiritimati – the largest atoll in the world. With its miles of sand beaches, peaceful lagoons and swaying coconut palms, all resting atop an ancient reef, it is a tropical oasis awaiting your exploration. The entire island is a sanctuary for the widest variety of tropical seabirds anywhere in the world – a stunning population of between four to six million birds.

When Captain James Cook first sailed to Tahiti in 1769, he and his crew all thought they’d found paradise. Cook hinted at it in his journals, in coy language that would have been acceptable in his day; his men felt considerably less reserve, and returned home sporting tattoos and stories of a people who ate what fell from trees, and lived lives of freedom unknown in Europe. All without much need for clothes. Although all of French Polynesia is sometimes referred to as Tahiti, Tahiti proper is only one island, ringed by a reef that turns the water shades of blue even sapphires can’t come near. Rivers flow down from its high peaks, and every night, the sun goes down behind the neighboring island of Moorea, outlining the mountains like a laser show. Papeete, the capital of French Polynesia, is a bustling business and government center, with black-pearl shops on almost every corner. As you move into the countryside, time starts to slip, and it's just the changeless ocean and the almost un…

When Captain James Cook first sailed to Tahiti in 1769, he and his crew all thought they’d found paradise. Cook hinted at it in his journals, in coy language that would have been acceptable in his day; his men felt considerably less reserve, and returned home sporting tattoos and stories of a people who ate what fell from trees, and lived lives of freedom unknown in Europe. All without much need for clothes. Although all of French Polynesia is sometimes referred to as Tahiti, Tahiti proper is only one island, ringed by a reef that turns the water shades of blue even sapphires can’t come near. Rivers flow down from its high peaks, and every night, the sun goes down behind the neighboring island of Moorea, outlining the mountains like a laser show. Papeete, the capital of French Polynesia, is a bustling business and government center, with black-pearl shops on almost every corner. As you move into the countryside, time starts to slip, and it's just the changeless ocean and the almost un…

Shaped like a heart and crowned with emerald-green spires, Moorea is easy to love. The Magical Island, as it's nicknamed, is celebrated for its untamed landscape and symmetrical side-by-side bays (called Opunohu and Cook's); it was said to be the inspiration for the mythical isle of Bali Hai in James Michener’s Tales of the South Pacific. Its languid lagoon seems without end, wrapping this 132-square-kilometer (50-square-mile) isle in shades of liquid blue, from pale aqua to intense turquoise. Dolphins and stingrays glide through the waves alongside snorkelers and divers exploring the stunning undersea scene. Venture inland to the valleys and another aspect of island life becomes clear: agricultural abundance, with crops that include pineapples, bananas, taro, sugarcane, coffee and cotton. Moorea has shopping, too, mainly for lustrous Tahitian black pearls and brightly patterned pareus (wraparound skirts). Wherever you head, you'll find the South Pacific you have dreamed of, moving to…

Oro, god of war, guards his temple deep in the rain forest of Raiatea. Nearby on Mt. Temehani grows the rare and delicate tiare apetahi flower, whose petals open only at dawn in the presence of lovers. Sample shore excursions: Faaroa River Jungle Cruise; Raiatea - The Sacred Island; 4-wheel-drive Safari.

This dramatic South Pacific island is complete with miles of white sand beaches, glittering lagoons, small villages, and volcanic peaks covered in lush vegetation. Visit the Cook Island Cultural Village and experience the lifestyle of the Maori people; walk the Cross Island Trek amid fragrant frangipani and be rewarded with beautiful views and waterfalls; and of course spend time luxuriating on a peaceful beach as the trade winds maintain a perfect temperature.

The Vava’u (va-vuh-OO) island group is part of the Kingdom of Tonga—an even larger collection of tropical Pacific Ocean islands. With an ideal year-round climate that’s perfect for swimming, snorkeling, diving and sailing, the islands—which are mostly uninhabited—boast a varied set of attractions for visitors that only begin with their famed white-sand beaches lapped by turquoise waters (with visibility down to 30 meters, or 100 feet) and enchanting coral reefs teeming with abundant marine life like tropical fish, dolphins and sea turtles. In addition to these simple but highly memorable watery pleasures, the Vava’u islands offer tropical forests, limestone cliffs and caves to explore, traditional villages to check out and a wealth of activities ranging from sea kayaking and gamefishing to yachting. Not only can you spot humpback whales (between July and October) and take in the unique atmosphere of historic cemeteries, you can also enjoy a hike up Mount Talau. The island’s tourism in…

Unique in many ways, Tonga is the only country in the South Pacific that has never been colonized. The secret to this tiny kingdom's lasting autonomy lies with its monarchy - rich in culture and tradition; unafraid to modernize and move forward. You'll find Nuku'alofa on the isle of Tongatapu - the largest of the 171 island jewels in the Tongan crown. Hopefully the Tongan people, cheerful and welcoming, will treat you to a version of the lakalaka - their compelling art of storytelling manifested in a breathtaking dance.

Historic sites—including the place where the most important treaty in New Zealand's history was signed—winemaking, golfing, sailing and scenic beauty all combine to make the Bay of Islands one of this South Pacific nation's most compelling regions. Located at the top of the North Island, the area has a subtropical microclimate that gives it an abundance of flora and fauna and a lengthy beach season. Comprising 144 islands between Cape Brett and the Purerua Peninsula, the Bay of Islands requires a few days to fully explore. Visitors with just a day here will have to make a tough choice: cultural immersion, nature appreciation or wining-dining-shopping. Waitangi, home to both the cruise port and the region's historic treaty grounds, is one of three main towns with celebrated sights. The others are Kerikeri, with its historic buildings and vineyards, and Russell, where a notorious seafaring past has mellowed into tidy, day-trip-worthy charm. Those who'd rather experience the Bay of Islan…

New Zealand's biggest city deserves more than a layover. Auckland is multicultural and cosmopolitan, with sizeable Polynesian, Asian and Maori populations enriching its history and broadening the palate. Internationally known chefs and fashion designers have made neighborhoods like Ponsonby, Newmarket and Parnell world-class destinations for shopping and dining. You're never far from water attractions in New Zealand—and this is especially true in Auckland where it's not unheard of for downtown workers to go kayaking on their lunch break. The once-gritty port has been transformed into inviting public spaces and buzzing nightclubs, with sailboat charters and regular ferry connections waiting to whisk visitors around the harbor for sightseeing. Start your day sipping a flat white while you plan your explorations: art gallery crawl, winery tour or volcano hike? It's possible to do all three without losing sight of the Sky Tower, one of Auckland's top tourist attractions, from which you ca…

New Zealand's friendly capital city features gaily painted old wooden houses and a red cable car that takes you up to the Wellington Botanic Gardens and a fine view of the harbor. A must-see is the engaging Te Papa Museum. Sample shore excursions: The Best of Wellington's Pubs; Boomrock Escape; Lord of the Rings - on Location.

If you want a snapshot of Australia's appeal, look no further than Sydney: The idyllic lifestyle, friendly locals and drop-dead natural beauty of this approachable metropolis and its attractions explain why the country tops so many travelers' wish lists. But Sydney is more than just the embodiment of classic antipodean cool—the city is in a constant state of evolution. A list of what to do in Sydney might start with the white-hot nightlife, with its new cocktail bars and idiosyncratic mixology dens. Inventive restaurants helmed by high-caliber chefs are dishing up everything from posh pan-Asian to Argentine street food, while the famous dining temples that put Sydney on the gastronomic map are still going strong too. The famed harbor is among the top sights—home to twin icons the Sydney Opera House and the Sydney Harbour Bridge, it is the stepping-off point for some of the city's best cultural attractions and sightseeing. In one day you can sail around the harbor, get a behind-the-sce…