Thank you for the kind words. Interestingly, had you not included that you’ve been to Costa Rica, I’d say that was the obvious suggestion because they really do that sort of thing well and it’s at least a bit better organized than its neighbors. And if you were less concerned over travel time, I’d have some interesting suggestions for you in Asia. However, as you know, it takes nearly a full day just to get to Asia from the US or Canada, and then a few days to adjust, so you might be best off saving that for later.
As for flight connections, Barcelona and Madrid should have decent connections to Toronto and Delhi, while Casablanca (Morocco’s largest airport) probably does not. So Spain is the better choice by that standard. On the other hand, you can get to Morocco by ferry from Spain in a short time, so you could go to Spain and also visit Morocco for a day or two.
I haven’t heard much about Zika in quite some time, but I just checked the current CDC map and evidently it’s still out there. I also remember hearing that it’s really only pregnant or potentially pregnant women that are at much risk, so perhaps that is what you are implying with the kids in their 30s. I’m no expert on Zika and I’ve visited many places on the map in recent years without much worry.
Not surprisingly, the weeks around Christmas and New Years are literally the busiest of the year in Goa, so either book a hotel way in advance or be flexible once you arrive. Some towns, like Calungute, are lined with package hotels that fill up completely, but other towns, like Anjuna and Vagator, are usually booked in person or by email, so you can often find a place just walking around. If you are in the mood to tour around, Mumbai has great weather during December, and Delhi has warm days but cool evenings this time of year. Goa has some of the best beaches in December in all of Asia, so give this one a serious look.
Traveling around India is a shock to the system, but it’s not as bad as it looks. If you pay a bit more for the AC3 class on trains (air-conditioned, 3 bunks per side of the compartment), or AC2, it’s pretty comfortable and civilized. Mumbai is worth a couple days before you’ll be desperate to get out, but many parts of Rajasthan are much nicer and fascinating.
If you are really only going for 4 or 5 days you only have time to visit one or maybe two cities anyway. I’d say that Lisbon would be ideal and you’d have time also for a short visit to Porto or the Algarve in the south, or at least the historic small town of Sintra, which is near Lisbon. Lisbon has fantastic weather for Europe and it’s a lovely city with plenty to see and do.
Like so many others on this list, Goa is completely done with its harsh rainy season by the time November begins, yet crowds don't really start showing up in earnest until mid December. If you have the time off then you'd be very happy just finding a cheap hotel in one of Goa's beach towns and just chilling the whole month in great weather and with minimal crowds.

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.
My other two suggestions are San Juan, Puerto Rico and Cartagena, Colombia. Both cities have really wonderful colonial districts and modern resort districts nearby. San Juan is more expensive, but still reasonable, and it has far better beaches. Both have a bit of rain in November, but it tends to come and go quickly. You’ll get similar rainstorms in most of the Caribbean in November, so it’s a bit tricky. I hope this helps. If you had something else in mind let me know and I’ll try again. -Roger
Unlike Bangkok, which has warm evenings and blazing hot days pretty much all year, Chiang Mai cools off nicely during December, at least in th evenings. This is an outdoor city with an emphasis on hiking and exploring temples so the cooler temperatures will be welcome for most people. It's still hot most days, and quite dry as well, so it balances nicely.
If you book a resort hotel from home you'll probably think Goa hotel prices are much higher than you were expecting, but if you book a family-run place once you arrive you'll still find fantastic bargains. It's probably wise to book a few nights online before you get to India, because it can be incredibly confusing at first. After that you might be able to find a similar place for half the price by just checking around the same area.
It can still be rainy in Belize in November, so it’s not an ideal time to visit. I quite like Belize and there is a lot to do there, including of course the second largest coral reef in the world. You can also head over the Guatemala border to visit Tikal and even down to Antigua for something different. You don’t get many great beaches there, but aside from that it is great.
If you can, try to stay at a hotel or hostel that has a kitchen which guests are allowed to use. You can also elect to find home-share style lodgings, as people often rent out their homes during peak vacation times for tourists to use. Once you have a kitchen, you have control over what you purchase and what you eat. An added benefit of this style of travel, other than the fact that you can stick to your Keto Diet effectively, is that you get to experience the local side of life. Going to grocery stores, choosing from local ingredients, and cooking for yourself will help make you feel like you’re a part of the culture, instead of only a visitor.
Let’s just say that November in Colorado is a truly exciting time of year. The city of Denver hosts several hot annual events, including Mile High Holidays, The Starz Film Festival, and the International Wine Festival. There’s also Denver Arts Week, which is a week-long celebration of the visual and performing arts held during the same month. What’s more is that snow aficionados looking to get an early start on winter sport fun should make resort reservations come November. The earlier you claim those spots, the cheaper the prices tend to be.
“Winter in Eastern Canada” might sound more like a 19th-century prison sentence than it does a pleasant vacation, but Quebec City does the cold better than anywhere in North America. Blanketed in snow, QC looks like the world’s most elaborately constructed Christmas village. The cobblestone streets in Old Quebec densely packed with storefronts beckoning you to come in for hot food and baked goods, and boisterous bars overflow with a cacophony of Quebecoise. In December the streets are draped with Christmas wreaths and populated with carolers, plus there’s an authentic German Christmas market -- a true novelty in a city so overwhelmingly French.
To the life aquatic now and Micronesia’s little-known islands scattered in the Pacific Ocean, which serve as the mating grounds for giant manta rays. With wingspans that can reach up to 5m, the chance to dive alongside these dancing behemoths shouldn’t be missed. From colossal to downright cute, rare (and ridiculously adorable) pygmy hippos can be found in Sierra Leone, once you've had your fill of lounging on palm-fringed beaches.

The only places I’ve visited in Brazil at this point are Rio de Janeiro and the Iguazu Falls area. Both of those areas are very nice and justifiably popular. Aside from those, I hear a lot of mixed things about Brazil. I’m sure I’ll explore more of the country at some point, though I’m in no rush. Among other things, English isn’t widely spoken in Brazil (and in Latin America in general). You might know as much about the country as I do, aside from those places I’ve visited.
A charming, historic city to visit any time of year, Edinburgh is especially festive during December. Walking through its cobblestone streets takes you back to medieval days when sheep, cattle, and grain were sold in what is now the center of the city. Today, the Royal Mile includes shops, cafes, and museums. Edinburgh Castle, a must for first-time visitors, dates to the 12th century, with its dramatic silhouette overlooking the city. For those seeking holiday celebrations, the Royal Botanic Garden is decorated with lights, music, and illuminated trees. European-style Christmas markets pop up at Princes Street Gardens and George Street, offering traditional crafts, gifts, food, and warming drinks, most welcome during chilly December. The annual Hogmanay celebration welcomes the New Year with fireworks, food, and festivities. Don’t miss the delicious and ubiquitous fish chowder called “Cullen skink,” and be sure to try haggis, served with “neeps and tatties” — mashed turnips and potatoes. Buttery shortbread and whisky from the country’s more than 100 distilleries are also Scottish specialties. A stay at the elegant and historic Balmoral Hotel will enhance any visit to Edinburgh, and while you’re there, you’ll notice that Scottish actor Sean Connery was a guest, as was J. K. Rowling who finished the last Harry Potter book in one of its suites.
If an apartment isn’t your thing, or you have to book a hotel for your business trip, then there is one upside: the food. Typically hotels will include some sort of breakfast, and occasionally some sort of dinner plan. In Portland, we stayed at a great hotel that included both. Breakfast usually consists of pastries, waffles and oatmeal – but they almost always have eggs, bacon, and sausage ready to go on your plate.

If this were last year I might have also suggested San Juan, Puerto Rico or Cartagena, but both of those have issues at the moment. If for some reason you don’t like what you see in Costa Rica, there are also some really nice resorts in Panama, especially in the San Blas Islands area. Aside from those you’d probably have to fly longer than you prefer. I hope this helps. -Roger 
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