I’d recommend 1 night in Auckland, then 3 nights on the North Island, and then a ferry to the South Island. If you can spend a week there, and return the camper van or car to Christchurch for a flight to Auckland and home, it would be perfect. As long as you can spend at least 4 nights on the South Island, it will be worth it. But if your schedule or budget don’t allow that much, you might just stay on the North Island. The most interesting place on the South Island is Queenstown, but there is plenty to see all over.
The second trip will be the second week of December from the 13th to the 19th. Also warm place with adventure and tourism. Im going with my best friend. I was thinking one of the islands of the Caribbean or Latin America ( since I can travel freely to most of them without the process of getting a visa) but I’m not sure which ones where not affected by Irma.
As for the Northern Lights, Iceland is one to consider, and its Aurora Tourism sector is pretty famous. You can get a cheap flight to Iceland from London or most other large cities in Europe, and it’ll cost about the same as a flight to Stockholm or Oslo. If you want to stay on the continent, I’d think about Sweden, even though Norway has more northern area. Both are very expensive, but Sweden is a bit cheaper and easier to get around in.
The high season hotel prices will start in November as well, but crowds are usually thin for most of the month so you should be able to get some nice bargains at some of the nicer places that allow online booking. When they see that they have lots of empty rooms as the month approaches, they'll discount to be on par with some of the 2-star places that aren't nearly as nice.
Hotels in Buenos Aires are starting to reach their summer peak prices in November, especially toward the end of the month, but still they are a fantastic bargain by European or North American standards. The weather in November is also pretty much perfect, and while there's always a threat of rain in BA, it's mostly an indoor city so it shouldn't be too much of an inconvenience.
If you’re highly susceptible to the Christmas spirit and haven’t already committed the entire holiday season to wrapping presents with Aunt Linda, consider Cologne. The city has a whopping seven main Christmas markets -- definitely don’t miss the Cathedral Market, which has the largest Christmas tree in the Rhineland, or Angel’s Market, where you can sip eggnog punch and weave around people actually dressed as angels; Santa comes through once a week as well… on horseback. All that’s left for you to do is listen to the festive music and browse the stalls for an apology gift to send to Aunt Linda.
I’ll be happy to try. First off, if you are doing the actual Inca Trail hike, you’ll need 4 days for that plus another couple of days in Cusco to get acclimated. So really that whole part of your trip would be a week. Also, to get to Cusco you pretty much have to go through Lima, and it’s also an interesting city so I’d recommend probably 2 nights there. If you don’t do the Inca Trail and take the train instead, you could save 3 days in Cusco.
You mention New Zealand and of course it’s summer there then, so it would be a good choice. However, all of these places will be crowded and near peak hotel rates if they are warm. So I’ll be happy to give you advice if you tell me if you’d rather visit one or more European cities in the cold season, or if you are looking for a warm place like New Zealand where it will be fairly crowded. By the way, the southern European cities such as Rome and Barcelona are lively and enjoyable that time of year, as the Christmas season goes on, and there aren’t too many tourists except for a few that travel to see their families around the holidays. So it can be a good time for southern Europe, as long as you don’t mind wearing a jacket or jumper during the day, and maybe a bit more in the evening. Give me a bit more guidance and I’ll be happy to try to help. -Roger