my seven wonders of nature

planet Earth is itself a great wonder! the campaign to declare the planet's Seven Wonders of Nature is on its final stage of choosing the seven from the 28 finalist that qualified the previous list of 77.

i already voted and here are my seven after reviewing all the 28 and made a brief read from wikipedia. (in no particular order)

[Puerto Princessa Underground River]
known as the world's longest underground river. a length of 8.2kilometers transporting visitors to giant chambers of stalactites and stalagmites. great limestone karst dominates this winding river on the Philippine's last frontier, the island of Palawan. it has some of the most important forests in Asia gaining 8 out of 13 types of forest in Asia.

[Angels Falls]
the world's highest waterfalls with a height of 979meters. a visit to this magnificent waterfalls located in Venezuela takes an experienced trekker. i first learned about this through BBC's Planet Earth collection. but did you know that it's even higher than the present tallest building in the world? Burj Dubai stands 818meters.

[Great Barrier Reef]
divided into 70 bio-regions off the coast of Australia is the world's largest coral reef system. home to the many sea species that adapts its rich underwater environment. built by billions of coral polyphs that vastly expands like into a wall-like formation. it is visible from outer space.

[Amazon River]
being the largest river in the world that crosses seven countries of South America that includes Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru and Venezuela. it also has more than one third of all species in the world.

[Jeita Grotto]
amazed by caves, i included this underground cave system in Lebanon. it has a total estimated length of 9kilometers. it is composed of the upper and the lower cave of which the lower cave is an underground river of about 6,200kilometers. it is home to the world's largest stalactite in a chamber with 120meters in height.

[Grand Canyon]
a cut of layers and layers of rock believed to have been formed in a six million year period. home to the Native Americans and is a popular setting for movies. the intricate beauty of how nature formed this 447kilometer-long canyon makes it stand out.

[Galapagos islands]
one of the most diverse archipelago that holds to a great number of endemic species. popular to many as Darwin's studying site of his research on the theory of evolution. iguanas, tortoise, penguins and albatross inhabits the 19 islands and about 107 rocks and islets.

definitely each of the finalists has its own prime factor of taking the spot to be included in the Seven Wonders of Nature. but we're all given the chance to take part in this campaign so let's take part. vote now and share your own list now.

here's a link that leads to a more detailed information of each finalist in wikipedia.

take note of the following criteria:

1. Unique beauty of the nominated site
2. Diversity and distribution
   
3. Ecological significance (in terms of either stand-alone eco-systems and/or their significance for human beings)
4. Historical legacy (relation that human beings and/or indigenous populations have or have had with the site)
5. Geo-location (even distribution of the 28 Official Finalists between all continents)