From Atlanta, the places that come to mind with the theme of “nature” would be Costa Rica and Belize. Costa Rica is probably the better choice, as it famously has around a third of its land as natural parks. Much of it is jungle, and they have all sorts of activities including zip lining, but also canopy tours and much more. There is also the Arenal volcano there, which is really nice and has some fun hot springs around it. They also have beaches, of course, but there is plenty in the interior of the island to keep you busy. If you know a bit of Spanish, it helps, but most other visitors know little or none.
December is the end of the rainy season in Boracay, but by the middle of December you would probably only get a few quick tropical showers a week. Room rates are a bit lower at that time as well, so it can be a great time to visit. If you were looking for a place to go for 2 or 3 days, I wouldn’t recommend it because it does take some time to get there and you could be a bit unlucky with the rain. But if you are going for longer than that I’d highly recommend it. It’s a wonderful little island that feels like you’ve gone back in time to before mass-market tourism in places like Phuket.

Dubai has pretty much perfect weather in November, and this is really the first month since April when it's not scorching here. Fortunately, the crowds are also light because most people wait until Christmas to start traveling to warmer places. Dubai can be incredibly expensive if you have a big budget, but it doesn't have to be. You can get good deals on non-chain hotels and even apartment hotels this month, and if you skip the hotel restaurants and the fancier places in malls, you can eat well on a modest budget here.
Bali, which is just south of the equator, would be a good choice in November. It does rain a bit that month, but they are summer storms that tend to only last 30 minutes or so. It’s a wonderful island with great prices on most things, including massages. The complicated thing about Bali is that the main tourist areas of Kuta, Legian, and Seminyak are now so crowded that they can be unpleasant. I spent a month there again earlier this year, and I don’t think I’ll go back to that part of the island.
As for Malaysia, I’m a big fan, and with your friend there it should be easy. Interestingly, I was just in China myself recently and a few days ago I published a long article on my advice for whether to go yourself to China or go on a group tour. I also discuss the most popular and best places to visit when you are there in the bottom part of the article. One tricky thing for many of us is that you have to get a China travel visa and some of us can only get that visa issued in our home country, at least according to their rules. I literally spent years traveling around Asia but I was never able to visit China because they required that I get a visa issued in the US and I had to show my flights booked from the US to China and then from China back to the US. If I could have gotten a visa issued at a Chinese embassy in Bangkok or Singapore, I would have done it years ago.
Interestingly, December though February do get a bit cool in Cairo, so it's not a great winter break, but in November it's still pleasantly warm and bone-dry so you can enjoy the outdoors for long periods of time. If you don't mind staying in a locally-owned hotel you can save a lot of money and see some old-world charm at the same time. Reservations in advance aren't necessary, but it's best to book your first couple of days just to avoid all the confusion once you arrive.
The last one is a 10 day trip for spring break 2018 most likely to be from March 9th to March 18. I’m thinking Europe but I don’t want to stay only in one country. I have so many options that I need someone to shorten the list in a way that it will work out. I want to go to Amsterdam, Rome,Venice,London,Barcelona,Zurich,Madeira,Dublin, and Madrid. (Amsterdam & Barcelona are a must).
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. 
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