Socotra is a small Yemeni archipelago of four islands and islets in the Indian Ocean off the coast of the Horn of Africa,
about 350 kilometers south of the Arabian peninsula.
Earth of continental origin.
The archipelago features narrow coastal plains,
a limestone plateau with caves,
and mountains which rise to
1,525 meters above sea level
Guaira Fall...
This waterfall,
known as Guaira,
is on the Parana River,
on the border between Paraguay and Brazil.
In Brazil,
the waterfall is known as Sete Quedas. Guaira is just,
ver three miles wide,
and only about 110 feet high.
But Guaira has the largest.
Iverage flow of any single waterfall on earth.
On the average,
about 212,000 cubic feet of water passes over Niagara Falls each second. The average flow of Guaira is 470,000 cubic feet per second.
And during seasons when the Parana River is high,
the flow over Guaira can reach 1.7 million cubic feet per second!