Lace up your boots for an end-of-year adventure at the wild ends of the Earth. December is the ideal time to explore Patagonia’s mind-blowingly beautiful Torres del Paine National Park. Embark on an epic trek along the eight-day circuit, or take the four-day ‘W’ trek for Instagram-worthy views of Los Cuernos (the ‘horns’), the region’s iconic jagged granite peaks. Similarly breathtaking experiences can be had diving the coral reefs around Thailand’s Similan Islands. Beneath the sparkling surface of the ocean you’ll find sharks, barracuda, rays and green and hawksbill turtles – it’s Finding Nemo brought to life.
Oh, and I just noticed you asked about general safety as well. Buenos Aires is fine as long as you don’t wander into the bad neighborhoods after dark, which is pretty much true almost anywhere you go, including Europe. But Rio is sadly famous for petty crime and it’s a real issue. As long as you know what NOT to do it’s quite safe, so I’ll still recommend it as long as you read up a bit on the topic. The most common problem is when people walk down to the water on the beach after dark. As long as you know NOT to do that you should be fine, but if you did go for an evening walk near the water and out of sight of the well-lit sidewalks, the chances of getting mugged are extremely high. Again, it’s worth learning about it and it’s easy to stay safe if you do. Let me know if you have any other questions. -Roger
The three places that jump out to me are the Playa del Carmen area just south of Cancun in Mexico, the island of Puerto Rico, or Costa Rica. All of those have endless beach activities and sights and great food and everything else, and they are all well within your budget. Puerto Rico would be easiest, and probably my first choice. Costa Rica is better known for adventure activities that might suit the younger ones. There are several good resort areas along the Pacific coast that would work.
November is typically the end of the wet season in Sri Lanka, and of course it’s hot every day of the year. I think you’ll be okay. In those areas there are often a month or two where it rains a LOT, and November is not one of those months in Sri Lanka. You might get a few storms per week, but they should be the kind that start at 3pm and finish 20 minutes later. They are easy to shelter from because you see them forming. You can get storms like that almost any time of year in the Tropics. Have a great trip. -Roger
Located off the coast of East Africa, the Seychelles—an archipelago consisting of 115 islands—is about as close to paradise as you can get. Crystal clear water, lush jungles, and powder-fine sand make it the ultimate early winter escape, particularly for romantic getaways. Book one of the 30 breathtaking pool villas at Six Senses Zil Pasyon, which is among the region's top luxury resorts. The hotel is situated on a private island that offers prime territory for snorkeling, sailing, kayaking, and hiking—plus, the spa has scenic pavilion-style treatment rooms that are worth the trip alone. Health conscious guests will be particularly impressed by the property's new "Eat with Six Senses" program, which is intended to make travelers leave vacation without the guilt that comes with overindulging. There are four tailor-made treatment plans that focus on sleep, detoxing, fitness, and more, depending on the issues you prefer to address.