New Zealand is an excellent option in December, as it’s before the Christmas crowds and just before the summer holidays there. The best and most popular way to explore New Zealand is to rent a camper van or a car and drive from one “holiday park” to another. Auckland is a pretty generic city so it’s not worth spending more than 1 or maybe 2 days there. Just fly in, and rent a vehicle to leave the next morning, and drive south. The North Island has a lot to see, but the South Island is even more scenic and pleasant. You can take a ferry between the two with your vehicle.
Uruguay is an interesting place. It seems to be a less modern and less developed version of next-door Argentina. Buenos Aires is a larger and more interesting city than Montevideo. There is a town there called Colonia, which is worth a couple days if you like old and charming cities. But most people who go to Uruguay either go to one of the posh beach resort towns (mainly Punta del Este), or they go to the tourist cattle ranches, which are surprisingly popular. If you haven’t been to Argentina yet you might find that it has more and different options, such as the Mendoza wine region and the mountain resort town of Bariloche.
The Norwegian coastal city of Tromso, located more than 200 miles north of the Arctic Circle, is an enchanting winter wonderland in December. During the Polar Nights — when there is no sun at all — the opportunity to witness the Northern Lights is greatly increased. For another awesome view, take a cable car or an adventurous hike up to Floya, overlooking the city of Tromso and the surrounding mountains and fjords. The Polaria Arctic Experience Center and Aquarium is a family-friendly destination, both educational and fun. The 360-degree Planetarium at the Science Center in Tromso is another family option with breathtaking photos and a lifelike video of the Northern Lights. Stroll along Storage Street to be amazed at the number of cafes, restaurants, pubs, and shops featuring artwork, clothing, and crafts by local artisans. Mack’s famous Olhallen beer hall, established in 1928, is Tromso’s oldest pub, boasting Europe’s longest tap beer tower and a micro brewery. Their acclaimed Christmas Beer is released every December. Experience the Tromso wilderness on a dog sled or chase the glowing night sky on a reindeer sled with a native Sami guide. Tours range from four hours to five days. Whale watching is also ideal in December when humpbacks, killer whales, and several other species thrive on the plentiful herring fish in the fjords. Downhill and cross-country skiing opportunities abound for all skill levels.
Trekking in Nepal during peak season might not sound like the most sensible choice for penny-pinching backpackers. But you can still enjoy the ideal weather without spending a fortune on in-demand hotels and expensive permits if you're happy to swap big-name trails, like Everest Base Camp and the Annapurna Circuit, for quieter treks to Kanchenjunga Base Camp and around the Langtang Valley. Idyllic conditions (dry but not witheringly hot) are also on offer in Rajasthan, one of India’s most vibrant and varied states. Chug between notable, attraction-rich cities like Jaipur, Jodhpur and Udaipur on an atmospheric and wallet-friendly Indian train, snacking on spicy pakoras and sipping sugary chai en route.