Where is the Red Sea?

I read Exodus in New International Version and in the description of crossing the Red Sea the note says that is the Sea of Reed located at the lower Nile that has an ebb, so I understand Moses was well versed in astronomy and he made use of his knowledge and he crossed the Sea when the land appeared from above the sea.

But one of best Christian friends insisted that he as well as Jewish people crossed the Red Sea and he thinks it is well in accordance with Bible descriptions. But I think it's hard to cross the Red Sea, because it's too deep the seabed lies. Do you really think Moses really crossed the Red Sea or Sea of Reeds? Also it's too circumnavigating way to take the root across the Red Sea when Canaan is just next to lower Niles.