Rachel Atkinson hops like a Darwin finch from one volcanic outcropping to the next, then plunges into ankle-deep mud. Squishing as she walks, the botanist with the Charles Darwin Research Station homes in on the ailing invaders: blackberry, passion fruit, and quinine bushes clustered near Santa Cruz Island's last shrubby stands of Scalesia trees. Atkinson smiles in approval. One more blast of herbicide ought to prevent the aliens from regrowing and give the Scalesia a shot at survival after all.

We were on the front-line of an epic war being waged on all sorts of invasive species in the Galápagos Islands. Surprisingly, the culprit seems to be global warming, which is usually associated with polar bears and other sorts of cold things-not an archipelago situated one degree south of the equator.

It all started in the late 1980s, when the periodic El Niños became more frequent and severe. Of course, we do have to give some credit to the pirates and whalers who began visiting the Galápagos in the 1700s and leaving behind goats, pigs, and other animals as a living larder for future visits. That couldn't have helped.

The last two weeks of The Travel Channel's Cash and Treasures on Wednesday night haven't included kids at the dig sites, a quality I was impressed by early on. Still, I continue to be hooked into this show. This week, I stuck around for the back to back episodes because host Kristin Gum headed out of the United States for points south in what worked as a double feature. Normally, the first half hour show satisfies me. The episode right after the first usually has a totally different theme.

Episodes: Digging for aquamarines, morganites and more.

What are they? Gems that can be worth beau coups bucks. Aquamarines range from dark green to a light blue, like clear water. Morganites are light pinkish. Gum found an aquamarine worth $3,000 and a morganite worth $1,481, once they were cut and polished.

Location: In the mountains and hills of Southeastern Brazil before the jaunt to Rio de Janeiro for the cutting and polishing. The first episode was shot in Governardor Valadares in the state of Minas Gerais at the Jaco Mine. The second episode was at the Rio Doce Mine near Rio Doce.

Getting to the Jaco Mine involved first taking a train and then a jeep on an unpaved road with 32 switchbacks. The bonus of the effort, besides the gems, was the gorgeous scenery. Gum was given mining tips by the mine's owner and his son. The snaking tunnel of the mines where the walls shimmered turned up nothing, but once Gum sifted through the tailings using a large screen, she found several aquamarines. One of them was large piece that was turned into the $3,000 beauty. The others were the type you'd put in a collection and were not considered valuable.

Here's what I do to deal with jet lag. I don't go to sleep much before I travel. I think I was a hamster in my past life. I'm the type who wants to get every last project done, every last dish washed, every last chore behind me before I head out the door. I ruminate. I become more compulsive than usual.

Sometimes, I stay up so late that going to bed may not make sense. That's what happened before the good-deed travel Mexico trip. It got to be 4:00 a.m. and I thought, I'm getting up in two hours anyway, so why bother? I slept on the plane on and off, and went to bed early the following night. When I travel across time zones, this staying up late makes me tired enough that the jet lag is not as noticeable. I'm thrown off already, what's a bit more?

When I was living in Singapore, one of my closest friend's parents visited from the U.S. They are the hearty, cross-country skiing type who stay on a scheduled routine. Their answer to jet lag was to go on a long hike through the Bukit Timah Nature Reserve almost as soon as they arrived at our apartment. Our complex edged the preserve which made hiking there pretty darned convenient. They went to bed when they normally do, and seemed not to suffer much. Getting out in the air and sunshine is one way diminish that groggy, disheveled feeling.

There was an article recently in the New York Times that explains how a combination of coffee and naps can help thwart jet lag. I suppose this is what I do, but less scientifically. I always order coffee and a club soda when I fly. Coffee for the boost, and soda water for the hydration. It feels fancier than regular water. Anything one can do to spruce up travel in my opinion.

The photo is of my 2nd cup of coffee on the Southwest flight. It's slightly out of focus, but then, so was I.

When I went to Japan several years back, the U.S. dollar was the pits against the yen. Luckily I had a friend of a friend of my brother's to stay with in Tokyo. I had a Japanese rail pass for a week so we ventured out on day trips mostly, except for two nights in Kyoto. We went on a day trip to Nara from there. Other trips were to Kamakura and Nikko. This was an impressionistic sort of trip. Japan is such a vivid place that I can conjure up pictures of most of it.

Now that my friend has moved back to Japan, I'm thinking another trip to Japan is in order, particularly since we have another place to go. Okayama, where my friend now lives, looks like it's a perfect sized city for visiting with children, and one where its possible to taken in the nuances of Japanese culture. In an odd way, it seems to be to Japan what Columbus is to the United States--a reflection of the rest of the country without being overwhelming. There is enough to see and do to make it interesting, but because of the size, the people and sites are accessible.

I'm getting this from the Okayama page at Wikitravel that lists several attractions you can take in.

When I went on trek in Ladakh, India, most people who went along were outfitted to the gills in the latest, greatest, newest hiking clothes and shoes for such an occasion. One person, however, wore a pair of Converse All-Stars--the basic low cut version. Nothing fancy and he didn't even lace them. I can't remember if he wore socks. Probably not.

He walked unhurriedly for nine days along the trail that lead up the mountains through the Markha Valley. As he walked, he chewed tobacco and cheerfully shot the breeze. His shirts, by the way, were very nice cotton, pin-stripped button down Oxford cloth. His pants-- blue jeans. He tied a red bandana, pirate-style around his head and was never without his Ray Bans. I was proud he was in my group that lolly-gagged behind the rest. We took in the scenery and each others company, while the over-achievers sped ahead for who knows what reason except for wanting to be first. (It was hard not to delight in the gasping heaves and moans when altitude sickness kicked in for some of them.)

The Converse All-Stars said, "Kick back. Don't worry." I was happy to follow their pace. None of the five of us in the pack that brought up the rear suffered from altitude sickness. We were walking too slow for that, and my friend never got a blister that I can recall.

Converse All-Stars, also called Chuck Taylors or "Chucks," first made their appearance as basketball shoes in 1917. The company, though, is celebrating its 100th year. It was founded in 1908.

World travelers just can't get enough of Peru's famous Inca Trail. But has the Inca Trail had enough of them? It may come as surprise to anyone still planning summer travel to Peru, but the world-famous path to Machu Picchu is completely sold out for the 2008 summer travel season, with the next available opening in September 2008.

As veteran Peru trekkers might know, the Peruvian government began imposing restrictions in 2005 on the number of hikers who could take the path each day to no more than 500. Couple this with the insane popularity of Machu Picchu on globetrotter "must-see" lists and increasingly affordable airfare deals and you have a serious supply and demand problem on your hands. While this quota is helping to preserve the impact of human visitors on this priceless cultural artifact, it's certainly frustrating news for anyone planning their trip to Peru around a stopover at the site.

If it turns out the big, bad Peruvian government has thwarted your travel plans this summer, don't despair just yet. As this article article points out, there are a few alternative routes to the famed Inca Trail including the Salkantay Trail, which also climaxes at Machu Picchu, along with the scenic Lares Valley and the spectacular Colca Canyon.

And if you're still dead set on that Inca Trail trek? Give it another try in the off-season. You might even have that million-dollar view at the top all to yourself.

I've been thinking about John Muir and people who have such a passion that their whole life is dedicated to its pursuit. John Muir, as I wrote in a previous post, was dedicated to the preservation of nature. To really see the world as John Muir, the founder of the Sierra Club, saw it, hiking the John Muir Trail is one option. The trail winds 211 miles through mountainous scenery that includes three national parks: Yosemite, Kings Canyon and Sequoia.

Typically, people start at Mt. Whitney and head to the Yosemite Valley. The best time for hiking is July through September. The Pacific Crest Trail Association has a terrific guide that explains details about the trail and gives suggestions about planning a hike.

To enjoy the hike from the comfort of your computer screen, here is a video I came across with exquisite shots that vary between landscape, closeups and people. It's perfect for enjoying the earth and reinforcing why it's important to take care of it. Thanks to raceyjones for sharing on YouTube the 20-day hike he took on the John Muir Trail August 2006.

Even though this weekend was filled with Earth Day activities, the actual Earth Day is today. Because yesterday was John Muir's birthday, it seems fitting to mention those places that travelers are able to appreciate today due to Muir's dedication to the environment. Besides, he was a traveler with a capital T, the kind Abha referred to in her post on Henry Lee McGinnis, the 80 year-old who has been walking for 16 years.

Born in Dunbar, Scotland, April 21, 1838, Muir quit his job at age 29 after a machine accident almost blinded him. He decided to start walking to learn about nature. The journey took him to Cuba, Florida and California. Remember he was walking. He was so enamored with California that he made it his home. Muir is credited with helping to create Yosemite National Park, as well as, Sequoia, Mount Rainier, Petrified Forest, and Grand Canyon National Parks.

And if that wasn't enough, Muir helped influence President Theodore Roosevelt to form the National Monuments program and founded the Sierra Club.

Here's a quote of Muir's to take along with you this Earth Day.

Walk away quietly in any direction and taste the freedom of the mountaineer,.Camp out among the grasses and gentians of glacial meadows, in craggy garden nooks full of nature's darlings. Climb the mountains and get their good tidings, Nature's peace will flow into you as sunshine flows into trees. The winds will blow their own freshness into you and the storms their energy, while cares will drop off like autumn leaves. As age comes on, one source of enjoyment after another is closed, but nature's sources never fail.

--from our National Parks, 1901.

Sometimes it's years before we hear of the real vagabonds; I wonder how many we never hear of at all! Henry Lee McGinnis has been walking the world for the last 16 years, Google him and I find nothing other than a one-minute video on BBC.

So far he has walked over 80,000 miles across the US and 66 other countries. He is currently entering South America and will finish around 2010 in Texas, after passing through Central America and Mexico.

According to his website, the former Methodist minister and World War II army sniper, carries a 100-pound rucksack with everything but a kitchen sink, and a six-foot steel-tipped walking staff for protection. When he is not camping out, he looks for local hosts for a bed.

Inspired by reading National Geographic since he was 6, at the tender age of 9, he knew this is what he wanted to do. He believes that most people are searching for answers to the following questions: Who am I? Why am I here? Where am I going? This walk is an inner and outer pilgrimage for Mcginnis.

At 80, the man is still full of life: he wants to write a book of his journey and learn to play tennis before he is 100!

On the video, he leaves one message [paraphrased]: "When you are retired, don't sit in front of the TV set and gain 20-50 pounds drinking beer and eating sandwiches, go see the world!"

Prime example of the "it's never too late" notion: If he could start his pedestrian world tour dream at 62, we really have no excuse to follow ours!

From San Francisco to London and Paris to India, protestors are taking to the streets to demonstrate against China's hosting of the Olympic Games. Angered by the Chinese government's refusal to meet with the Dalai Lama, as well as the continued suppression of human rights in potential breakaway regions, the world is seeking to punish China on the eve of its long-anticipated coming out party.

For travelers on the ground in China, independent tourism has never been more difficult, especially since parts of the country have now been entirely closed off to the outside world. Following wave of violence that commenced on March 14th, the Chinese government has entirely barred tourists from entering Tibet. As a so-called 'autonomous region,' non-Chinese nationals must obtain special entry permits for Tibet.

Sadly, it's looking like the 'Roof of the World' may remain in relative isolation until the Olympic Games have passed, which is a huge blow at a time when tourism in the region was beginning to flourishing. Here in Japan, this was highlighted recently in the news when Mr. Yuichiro Miura, the 75 year-old thrill seeker who once skied down Everest using a parachute as a brake, announced that he was changing his Everest climbing route.