For the Geo Quiz we head to Gabon, on Africa's Atlantic Coast.
Gabon is located on the equator and nearly 85 percent is covered by rainforests.
Its capital is Libreville, but we are looking way outside the city — for a pristine freshwater lake.
It is famous for its clear blue water and for the dwarves that, according to the local legend, protect the lake.
Lac Bleu or Lake Blue is the answer to the Geo Quiz.
It is located 300 miles inland from Gabon's capital, Libreville.
Producer Daniel Glick tells about a local legend about the spirits that abound in the natural world in Lac Bleu as well as in the gorillas, elephants and hippopotamuses that inhabit the forests.