If You Had A Twin, But Didn't Realise...
Family Life9 mins ago
No best answer has yet been selected by H. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.Probably,but as the GP's are near Cairo, and Luxor is in Lower Egypt,you would have to fly.Whether that would be possible in one day I don't know.If you are considering a nile cruise in the Luxor/Aswan area ring a reputable Tour Operator (Bales,Kuoni etc) and ask them,if they don't know they are not a good operator!
Have a look at this link,it has a map that will show the distance from Luxor to Cairo(and it appears to have lots of other hints too).