The latest Budget Traveler email lists some places to see soon since they may be gone or pretty much destroyed - some as soon as the next decade - Belize barrier reef (coral bleaching, too many boats) , Madagascar (much deforesting, population growing), Maldives (sinking), both Poles (global warming - polar bears in danger, penguins too), parts of India - where most of the last remaining tigers in the wild are - too much population, killing tigers for Chinese medicines (they need to do something about this - there are only about 3200 tigers left in the wild and the article said that at least 1 a day is being poached for medicines), many parts of the Peruvian rainforest - gold mining, one of the last stands of old growth mahogany in the Amazon area - getting logged at a rapid rate).
Makes me sad to read these kinds of articles!
Travel and Leisure also put out a book with 100 Places to Go before they disappear. I remember one of the places mentioned sounded interesting--the Wadden Sea--apparently it's a place where you can "walk on water." Here's the link.
Thanks for the link to the article. The Wadden Sea, in Danmark is certainly an interesting spot.
Here is the full description of it for the rest of us: The Wadden Sea—Denmark
The Wadden Sea is a low-lying coast formed some 10,000 years ago at the end of the last ice age . . . As it reached the coast, silt deposits created new, low-lying land that has been changing shape with the ebbs and flow of the sea ever since. Tourists from Denmark and abroad flock to the Wadden Sea in droves to “walk on water” and see the varied landscape of cliffs marshes, sandy beaches, and tidal mudflats, where the difference between low and high tide can be up to 6 feet.