If you kept up with Gadling this week, you've probably gathered some tips to help you plan your next trip whether you're looking for the practical or the extravagant. For example,

1. Aaron says that almonds make perfect travel snacks, something he knew about even before he read about it at the Happiness Project website that recently offered up vacation tips.
2. Jerry found out from Mark Jolly, editor of globorati, that train travel is one way to go to travel green, and that train travel is having a comeback. There are other travel tidbits besides. If you missed this post, check it out.
3. Scott pointed us towards a High Sierra luggage deal at Amazon.com
4. Meg told us how to have the ultimate diamond and jewelry shopping experience in Manhattan
5. And Anna pointed us towards environmentally friendly cities for a vacation. It may surprise you that Bangkok is on the list. It has a well-deserved spot.

Have a great weekend and enjoy watching the rest of the Olympics. I'm loving learning more about China from all of the side stories.

Erik Olsen, former Gadling blogger extraordinaire (he topped 4,000 posts) has a recent article in the New York Times about the U.S.S. Oriskany, a battleship that was turned into an artificial reef off the coast of Florida near Pensacola.

This "great carrier reef," Olsen reports, is one of the best places to dive in the United States and has put Pensacola in the money. Dive shops have done a booming business and the ship has generated a considerable sum for the county besides.

Along with divers, military buffs and those who served on the ship back when have come to see it.

John McCain, though, has yet to make an appearance. McCain's plane took off from the ship's deck almost 31 years ago on his last mission before he was shot down during the Vietnam conflict and found himself in the "Hanoi Hilton" aka, Hoa Lo Prison, most definitely not enjoying the city's charm like I have.

As Olsen points out, there are some environmental concerns regarding sinking ships, however the Environmental Protection Agency helped to ensure the ship was cleaned up enough to be turned into an ocean life haven. Studies are being done to see what adverse environmental footprints are being made, if any. The fear is that PCBs are being released.

Regardless of the possible downside, barnacles, sea urchins and 38 fish species now call the Mighty O--the ship's nickname, home. Also, it can't be denied that sunken ships make great diving spots for folks who know what they are doing. Two people did die while diving at the Oriskany. One person died after getting the bends from diving down too far and coming up too fast, and the other one had a heart attack. The guy with the heart attack would have died regardless of what he was doing--even knitting.

Diving at the ship sounds fascinating--and I have a fear of drowning. Reading Olsen's description gave me the inkling that learning to scuba dive needs to be bumped up on my things-to-learn list. Actually, I'm not sure scuba diving has been on my things-to-learn-list. I've penciled it in.

For a slide show of the ship, click here. Also, check out Olsen's article. The guy can write. He can also scuba dive. This video was taken during his dive of the Mighty O. Plus, he can take pictures. The photo, as you might notice, is by him. Jeez, what can't he do?

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?

From changing linens and towels daily to keeping the air conditioner in every room turned to 55 degrees in the summer, hotels have been coming under fire for a long time over their wasteful use of resources. With the environment in the spotlight as the 2008 US Presidential election approaches, hotels are beginning to take steps toward better environmental practices.

This morning, Sustainable Cards, maker of the United States' first wooden hotel keycards, announced that 70,000 biodegradable wooden keycards will be used in Denver hotels during next week's Democratic National Convention.

Wooden keycards have been used in European hotels for almost ten years. Sustainable Cards argues that these keys are just as durable as the plastic versions, but unlike plastic, wood is renewable and biodegradable. Right now, it is estimated that hotels in the US produce 1,300 tons of waste each year from plastic keycards alone.

If you are one of the first Americans to use these eco-friendly keycards in Denver, Sustainable Cards wants your feedback on their website. Of course, we want to hear about it, too. Leave your comments with us, and if you want more hotels to embrace these biodegradable keycards, let them know about it, too. Fill out comment cards when you stay or send suggestions via hotel websites.

The issue of old cars becoming art is not a new one. A few years back, driving along Route 66 in Amarillo, Texas, I looked out for the 10 Cadillacs half-buried, nose first in a row off the highway. I saw them as funky and fun. The piece was titled Cadillac Ranch.

If you've ever driven through this part of Texas, you may understand how anything that breaks up the flat scenery is welcome. At least, that's my opinion. Some have felt over the years that those cars are nothing but junk--an eyesore. Evidently, they've become more junky since I saw them. (see article)

There is another art car issue in Texas. This one is very recent. Another car, this one painted by Austin-based artists as a protest to pollution, is involved in a tug of war between the artists and those who say that a car that won't run is junk. Those people want the car moved. The car, now a cactus planter, is art, the artists say and they want it to stay where it is on I-35 outside Planet K in San Marcos.

According to this article in the Austin News, a judge is to decide if the car should stay or go. Perhaps, the artists need to come up with a spiffy name and attractive signage similar to what one might see in a world class museum. It worked for Wilbur, the pig in Charlotte's Web. He was saved from the chopping block by Charlotte's web- weaving handiwork. "Super Pig" could be translated to "Super Car." PR can work wonders. Even a weird funky item is enough to draw tourists into an area.

I have looked to see if I can find out the ruling, but came up with nothing.

Tourism in Denali National Park, home to 20,320-foot Mount McKinley, could get a lot greener before we know it.

If you've been to Denali you know that the park forbids personal cars for the 92-mile length of the park road. Instead, visitors catch a diesel bus near the park entrance. The road is the only way to get into and out of the park.

Park officials are now testing out a hybrid tour bus to eventually replace the fleet of 110 diesel buses that take thousands each year to view North America's highest mountain and the wildlife that surrounds it.

Officials tell the Associated Press that these hybrids reduce the amount carbon dioxide emissions by 40 percent, nitrogen oxide emissions by another 20 percent and particulate emissions by 30 percent.

That translates into a much more environmentally friendly vehicle for one of the country's most beautiful...environments.

Officials are also touting the gas efficiency of the hybrids, since diesel fuel in the area is topping out at around $5 a gallon. The hybrid bus requires around 70 percent less fuel as the park's current diesel buses.

The hybrid system combines a diesel engine with an 80-kilowatt powertrain that incorporates a transmission, batteries and an electric motor, the AP reports.

Right now the park is looking to slowly phase out its diesel fleet, and officials tell the AP it could replace anywhere from two to 12 buses each year with the hybrid models.

But this will come with a significant price tag: Each hybrid bus costs $200,000 -- twice as much as the buses currently in use.

You can't visit Central America and not make at least some effort to see the monkeys. That's just wrong. Monkeys are way too cute to be missed.

Like Costa Rica, and other countries in this region, Belize is also trying to brand itself as an ecotourism destination.

The Community Baboon Sanctuary, a conservation project in which over 200 private landowners in Belize have voluntarily pledged to conserve their land for the protection of the Black Howler Monkey (called 'baboon' in the local Creole dialect) habitat, is well-worth the trip inland. It's only about an hour drive from Belize City.

But, there is a but.

Mosquitoes. Mosquitoes. Mosquitoes.
Before I begin talking about how cute the monkeys are, I am going to say this: I had never, ever before, seen so many mosquitoes before visiting the Community Baboon Sanctuary (CBS). Anywhere.

The closest I had ever come to this kind of mosquito infestation was in Venice. (Camping outside a city built on a swamp is not a good idea, note to self.)

Just opened in Pentonville Road, Islington (Greater London) is Surya (Hindi for "Sun" and Sanskrit for "Sun God"), the world's first green nightclub.

It will generate its own electricity when people move on its floors, will operate on solar and wind energy, has air-flush waterless urinals and low-flush toilets, and free entry for cyclists and walkers. Otherwise club entry is £10 and customers must sign a pledge towards helping combat climate change.

Brainchild of Mr.Charalambous, head of Club4Climate, the club's dance floor is made of crystal and ceramic, which when trodden on generates electricity under the concept of "piezoelectricity". This current is fed into nearby batteries, which in turn fuel the club. It is estimated that if a large group of clubbers danced vigorously, they could generate 60% of the club's energy needs.

With aim of inspiring the youth to get involved in tackling the issue of global warming, Charalambous said in the Times of India: "Unless we stop preaching to people and use an inclusive philosophy we're never going to create the revolution to combat climate change." I couldn't agree more.

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?

Even if you manage to do more than a staycation this summer, vacations just aren't what they used to be. Along with paying to check baggage and incredibly high gas prices comes a whole new level of social responsibility; seems like we can't even take a simple American road trip without considering all the environmental costs involved.

For those of you that are concerned with just how green your summer travels are, the Sierra Club has two easy quizzes to figure out where your vacation ranks on the green scale. The How Green is My Destination quiz looks at the environmental impact of where you are going and the How Green is my Getaway quiz analyzes just how your mode of travel -- bike, bus, airplane, etc. -- changes the greeness of your upcoming vacay.

To take the quizzes click here.