Australia's Amazing Bioluminescent Lake (Also Bioluminescent Bay in Puerto Rico). An unusually high concentration of Noctiluca scintillans, a bioluminescent microorganism, turned the water a bright, glowing, ethereal blue.
Blyde River Canyon is Mpumalanga, South Africa. It is a 26 km long, 2500 deep canyon covered with vegetation, making it the largest green canyon in the world. Read more: AfricVilla: Today's photo: Blyde River Canyon, South Africa
Submerged tree in the Green Lake. The Green Lake or Grüner See is a lake in Austria that dries out almost completely during fall, is used as a county park in the winter and is famous for the underwater park which forms during the spring due to snow melt