Tour to St Catherine Monastery and Mt Sinai

Since we were unable to go to St Katherine Monastery and Mt Sinai in the morning, so now we had to find a tour to go there at night, and return in the next morning. Amir from Seven Heaven Hotel insisted on EGP 50 per person, although his birthday is same with Wei Heng's birthday. We thought it's a bit expensive, so we asked around for taxi to St Catherine Monastery and Mount Sinai. The lowest we can get was EGP 50 per taxi one way. Quite cheap, but later another staff in Seven Heaven Hotel quoted us EGP 40, which pretty much the standard price, but we just booked the tour with the hotel.