This video is called Philae Temple Aswan Egypt.
From Egyptology News blog:
There have been various bits of news trickling out of Egypt about underwater discoveries in the Nile at Aswan. Here’s the latest.
“Archaeologists have discovered a portico, or covered entryway, of an ancient Egyptian temple beneath the surface of the Nile River.
The entryway once led to the temple of the ram-headed fertility god Khnum, experts say.
A team of Egyptian archaeologist-divers found the portico in Aswan while conducting the first-ever underwater surveys of the Nile, which began earlier this year.
“The Nile has shifted, and this part of the temple began to be a part of [the river],” said Zahi Hawass, Secretary General of Egypt’s Supreme Council of Antiquities. . . .
Today’s Nile obscures many objects from ancient times, and archaeologists believe the underwater excavations will reveal other significant artifacts.
The massive portico is too large to be removed during the current excavation, but archaeologists removed a one-ton stone with inscriptions that could date from the 22nd dynasty (945-712 B.C.) to 26th dynasty (664-525 B.C.).
The stone itself could be much older, however, because like many objects throughout Egyptian history, the original materials of the Temple of Khnum were reused to construct newer buildings.”
See this page for the full story, which is accompanied by a photograph of the one-ton stone with its inscriptions.