Unschooling is like surfing - you look for waves, you wait for waves and then you catch them - you surf them. Just caught the wave of reading about South America in Spanish. I like the thought of 'unschooling'.
Natural Glow: Australia's Amazing Bioluminescent Lake
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.