Today is the first day of school for my children. My daughter waltzed out the door at 7 a.m. this morning after showing me the piece of cheese she was eating--(she plays soccer and I'm adamant that she eat some sort of protein), to catch her ride. She's a 10th grader.

For my son, who is now a first grader, the anticipation build-up of last year is much less. We know our routine. Kindergarten left a lump in my throat. First grade is old hat, but he still wants me to drive him and walk him in for the first day. After today, he heads out on the bus.

This first day of school got me thinking about schools around the world and what a gift having a school to go to is. When I was in the Peace Corps, I worked with my village primary school on certain days to do health education. In The Gambia, at the time, most kids did not go to school. The primary school in my village was the only one for miles around.

The good folks at Grist put together their own list of 15 green cities. Although their thought was probably to showcase the green efforts made by local governments and locals to make the cities more environmentally friendly, in reading it I realized it was a great list of places to chose your next eco-vacation.

If you're looking to take public transportation, play in parks and learn more about sustainability as part of your next vacation, here are the 15 cities that made the list:

1. Reykjavik, Iceland
2. Portland, OR, U.S.
3. Curitiba, Brazil
4. Malmö, Sweden
5. Vancouver, Canada
6. Copenhagen, Denmark
7. London, England
8. San Francisco, CA, USA
9. Bahía de Caráquez, Ecuador
10. Sydney, Australia
11. Barcelona, Spain
12. Bogotá, Colombia
13. Bangkok, Thailand
14. Kampala, Uganda
15. Austin, TX, USA

Some of the selections surprised me; Bangkok for example, but apparently it's all about the city's strategy to make things greener. Check out the full list with accompanying explanations here.

What green cities have you visited?

What I really want is a cheap airfare to New York City from Columbus, Ohio. Since that's not on my horizon, I'm taking an Amtrak train from Cleveland and a Greyhound bus back. For adults traveling with children, both offer a discount that can't be beat.

If I were to head to the Caribbean, the Bahamas, or Bermuda, I might find different options that would put a cheaper airplane ticket in my hand. According to a recent "Practical Traveler" in the New York Times,' there are tickets for a bargain to these tropical locations.

Check out American Airlines, JetBlue. and Air France for the deals. Perhaps, you'll be lucky and an airport near where you live will have one of those bargain flights to a place you'd like to go. Going to Cancún out of JFK airport in New York City is only a few dollars more than a trip to Denver, for example. Denver's nice, but I wouldn't exactly call it a destination for a holiday.

Yes, I did go to Denver myself two years ago and considered it part of a summer vacation, but there weren't any hours relaxing by a pool.

One day, I might be looking to head to the tropics, but for now, it sure would be great to find a deal to New York. My son who is six years-old thinks Greyhound will be swell.

Also, an airline to keep an eye on for a travel deal, according to the article, is Southwest. As the article points out, Southwest has not offered a travel deal for awhile.

Location: it's a Bourdain family vacation to Uruguay, the hidden secret of South America. Quietly tucked between beach-strewn Brazil and boisterous Argentina, Uruguay is the unsung hero of grilled meats, beautiful scenery and a quintessential "laid-back" lifestyle.

Episode Rating: Four bloody meat cleavers out of five. The cleavers are extra bloody this week from the insane amount of meat Tony eats during his Uruguayan odyssey. It's worth noting that the high ratings so far this season are not inflated - every single new episode this summer has made for highly-watchable television.

Summary: Little did we know, but the Bourdain family has a colorful family history, starting with Tony's grandfather who headed across the Atlantic in 1918 to settle for a few years in Uruguay. It is this mysterious voyage across the ocean which frames Tony's trip. Who were his ancestors? What was life like in early 20th Century Uruguay? To help in his quest, Bourdain invites along his brother Chris, and the siblings set off to try and find some answers (and possibly eat some animal flesh during their downtime).

Location: This week Anthony is in Colombia, a country that finds itself the setting of one of South America's most remarkable transformations. In the 25 years since the death of Pablo Escobar, one of the world's most notorious drug lords, this once war-torn country has emerged like a phoenix from the scars of the past. Colombia offers Tony a tantalizing mix of cultures, delicious food and beautiful mountain scenery.

Episode Rating: Four bloody meat cleavers (out of five) in keeping with last week's rating system.

Summary: Cocaine. Violence. Political instability. These are the unfortunate but typical words that are associated with Colombia, South America's northern-most state. For many years the country suffered under the weight of rival drug cartels, fueled by an insatiable demand for their chief "pulse-raising" product in the United States and beyond. It is these very depictions that Tony comes armed to confront upon arriving in Colombia. Within the episode's first five minutes Bourdain has already pronounced his visit to Colombia as an unexpected delight. Colombia is literally a country-transformed and with killer food to boot.

Hello from Belize! What a beautiful little country this is.

I have wanted to come here forever, being a diver and all. As you probably know, the Belize Barrier Reef (stretching from Yucatan all the way to the coast of Guatemala) is the second largest reef in the world, after the Great Barrier Reef.

We took our first dive trip today, right off the Ambergris Caye island. It was just a shallow dive with a bunch of snorkelers who desperately wanted to "see some sharks." This part of the reef is know for its abundance of nurse sharks, pretty harmless types of sharks who eat by suction (hence the name). Still, they are sharks, aka beautiful creatures.

The dive instructor threw in some bait (an enormous fish head) and a few minutes later, a bunch of sharks (I saw five, the largest at least two meters long) and sting rays (the largest was over a meter across) came by for the feast. It was an incredible sight.

I don't know how I feel about the whole "petting the shark and sting ray" aspect of the whole thing. The instructors caught a couple of the sharks by the fin and let everyone in the group touch them. Same with the sting rays. I felt a little bad for them. I can't be good for them to have a hundred people a day touch them, right?

The other night we were sitting with a friend enjoying a few Pacificos when he asked if he could turn the fan on to keep the mosquitoes away. As one who always get bitten by these bloodsucking irritants, I was more than happy for the fan to keep me bite-free. As he clicked the fan on, our friend casually mentioned that with the rainy season comes dengue fever, which is not too dangerous,"unless you get Dengue Hemorrhagic Fever (DHF)..."

Excuse me? The what?

Before we left on this trip we went to the travel clinic to get the necessary shots as well as the medications we might need. As we will be traveling through high-risk malaria areas we stocked up on anti-malarials and brought along a good supply of bug spray. I figured malaria, not dengue fever, would be our biggest health risk. Truth be told, I have never been too concerned with dengue. I know that it can make you quite ill, I know there are no drugs to treat it but what I didn't realize was that you can potentially die from it.

It's that time of year when Travel + Leisure unveils its much hyped "world's best" list of cities, hotels, islands, cruise lines and more.

The poll, in its 13th year, is generated by T+L readers worldwide, who vote online for their favorites.

The big news in this year's survey is that Bangkok edged out last year's winner for world's best city, Florence, which dropped down to No. 5.

T+L's 10 best cities in the world are:

1. Bangkok
2. Buenos Aires
3. Cape Town
4. Sydney
5. Florence
6. Cuzco (Peru)
7. Rome
8. New York
9. Istanbul
10. San Francisco

Other highlights from T+L's world's best survey, as summarized by Reuters, include:

• Best hotel: Singita Sabi Sand, South Africa
• Best island: Galapagos
• Best large cruise line: Crystal Cruises
• Best small cruise line: Silversea Cruises
• Best international airline: Singapore Airlines
• Best domestic airline: Virgin America
• Best rental car agency: Hertz

Check out all the world's best here.

Back in April, Catherine posted about Denmark being ranked the world's happiest country by the University of Leicester in England, which published its so-called Map of World Happiness.

Well, just in case you doubted that institution's findings, another study, this one released last week by the University of Michigan's Institute for Social Research, has also ranked Danes No. 1 in terms of happiness and life satisfaction.

The Michigan study's overall conclusion: Happiness is on the rise worldwide.

It's perhaps no surprise that Denmark tops the list, since it is a perennial favorite in any survey of this ilk. There is just something about life in that Scandinavian country that is apparently better than anywhere else. But a few other countries in the top 10 do surprise...at least me: Puerto Rico. Colombia. Northern Ireland.

The 10 happiest countries in the world:

1. Denmark
2. Puerto Rico
3. Colombia
4. Iceland
5. N. Ireland
6. Ireland
7. Switzerland
8. Netherlands
9. Canada
10. Austria

The U.S. comes in 16th on the list, not too shabby given the sad recent years we've lived through.

This is the 26th edition of the U of M study, which annually surveys around 350,000 people worldwide, asking them, well, just how happy they feel.

The 10 unhappiest countries in the world:

1. Zimbabwe
2. Armenia
3. Moldova
4. Belarus
5. Ukraine
6. Albania
7. Iraq
8. Bulgaria
9. Georgia
10. Russia

Not many surprises there.

Check out the complete U of M rankings here.

The tiny country of Paraguay doesn't often pop up on the "must-see" list for those traveling to South America. Sitting landlocked between Argentina to the south, Bolivia to the west and Brazil to the north and east, Paraguay has been described as "the forgotten country of Latin America." But Paraguay has nevertheless attracted quite a bit of attention lately, less for tourism than because it is an important hub in the global smuggling trade.

A vast bazaar of illegal weapons, counterfeit goods and illicit substances is spread out for sale in the markets of Ciudad del Este, Paraguay's smuggling capital. The city is conveniently located at the convergence of the borders of three countries (Brazil, Argentina and Paraguay), making it the ideal transit point for tax free and often illegal goods headed to all points beyond. GOOD magazine has an interesting profile on Ciudad del Este in its most recent issue. Author Sacha Feinman dives into the city's back alleys and sidestreets, where he discovers everything from AK-47's to Montblanc pens to bricks of marijuana can be easily obtained for purchase. Feinman also befriends some of Ciudad del Este's many porters-for-hire, who package illicit goods and carry them over the city's 1,600-foot "Friendship Bridge" to neighboring Brazil. Instead of crossing through customs, the men drop their packages off the side to the riverbank below, where waiting teenagers sort through the packages for distribution. So much for filling out that customs form...

As long as the Paraguayan and Brazilian authorities continue to turn a blind eye to the thriving smuggling practice, Paraguay's black markets will continue to thrive. For a country that doesn't see much tourism (or other industry for that matter) it seems to be as much an economic necessity as it is a fact of life. Do exercise caution if you're even considering a visit. Aside from all the petty lawlessness, Wikitravel warns that Paraguay is currently experiencing its worst outbreak of Yellow Fever in over 60 years. Yikes.