If you long to explore New Zealand’s beautiful Bay of Islands, Paihia makes a wonderful base. Known as “the Jewel of the Bay Islands,” this seaside town has golden beaches, lovely coastal walking trails and waterfalls, and a colorful population of local birds. Paihia also holds an important role in the country’s history. It was here, after a century of conflict between indigenous Maori tribes and Western settlers, that peace was finally made and the groundbreaking Treaty of Waitangi was signed.

The seaside town of Russell is one of the most popular destinations in New Zealand’s Bay of Islands. The area teems with a mash-up of indigenous and European history, evident in its architecture and historic sites. Sail around the bay on a chartered yacht or iconic tall ship or explore the multiple personalities of The Gables 1847, which has served as a bakery, bordello and shelter for AWOL sailors on the lam.

European, Polynesian, Asian and strong Maori heritages give the Auckland its distinctive culture. Discover the history of the world's largest Polynesian city through Maori treasures at Auckland Museum and experience the lives of 19th-century settlers at Howick Historical Village. Find Polynesian handicrafts at Otara Market or people-watch in bustling Ponsonby and Parnell. Adventure junkies can get their fix from kayaking, sailing and high-octane bungee jumping.

Bubbling mineral springs and pools promise maximum relaxation in Rotorua, on New Zealand's North Island. Therapeutic hot mud pools, dramatic geysers and a buried village are within easy reach of the city. What happens in the bubbling mud geysers of "Rotovegas"—the area at the top of Fenton Street—stays in Rotovegas. Once you've made the most of the mud, soar nearly 2,000 feet on the Skyline Gondola for views of Lake Rotorua, then zip back down to explore the lake by paddle steamer, fishing charter or WWII amphibious vehicle.

Staggering beauty and heart-pumping thrills await in the resort town of Queenstown, which is also known for its Hobbits—much of the Lord of the Rings trilogy was filmed in the area. Outdoor enthusiasts flock to Queenstown for the kayaking, bungee jumping, jetboating, white-water rafting, hiking and skiing. More mild-mannered adventurers can take a quiet cruise through nearby Milford Sound, part of the Fjordland National Park World Heritage area, or sample South Island pinot noir from one of the region's 75 wineries.

Rare yellow-eyed penguins, fur seals and the world's only mainland albatross colony share residence in Dunedin, New Zealand's oldest city. When you're not watching wildlife, this South Island Otago Coast town also boasts impressive historic architecture from its days as a gold-rush mecca. Visit the 1906 Flemish Renaissance railway station or the country's largest center of higher learning, which resembles Glasgow University, thanks to the area's early Scottish settlers.

A gateway to Fjordland National Park, the quaint and peaceful township of Te Anau is nestled on the edge of a lake of the same name—the perfect site for jetboating or fishing. Embark on one of many day-long or multi-day hiking or walking tracks, then return to town to restore your body with a soak or massage at a spa and a delicious café meal. Nature lovers will marvel at the Te Anau glowworm caves, the Wildlife Park and Ivon Wilson Park, where rare Takahe birds flutter freely.

City slickers, culture vultures and beach bums alike fall in love with Sydney. Hang ten at famed Bondi Beach or stroll the calmer sands of Coogee.  Cash burning a hole in your pocket? You’ll find great shopping in the Rocks district and along George and Pitt Streets. Climb to the top of the Harbour Bridge or take a skywalk on Sydney Tower for a 360-degree view of the city. But whatever you do, don’t leave town without cuddling the koalas in the Taronga Park Zoo—they’re ridiculously adorable.

Lovely, laid-back Melbourne has something for everyone: family fare, local and international art, haute boutiques, multicultural dining, Australian and Aboriginal history, spectator sports, and pulsing, swanky nightlife. Cruise on the free City Circle Tram loop to check out unique attractions like the Royal Botanical Gardens and the Healesville Sanctuary, which buzzes with local animal species.