Hi David,Apparently the 'Sound & Light in Karnak Temple, Luxor' is the 'Son et Lumière Show’ at the Temple of Karnak excursion. I am not sure why it is named differently.Regarding the currency, you can pay for all extras with English money or Egyptian currency. The excursions always show the cost in US dollars...confusing! I have converted each excursion into English and Egyptian pounds for you (these are approx prices and calculated at the current exchange rates, obviously these may differ by the time of travel).......The temple of Abu SimbelPrice:£100/1,045 EGPBalloon flight over LuxorPrice:£87/466 EGPSound and light in Karnak temple, Luxor (Son st Lumiere show)Price:£21/215 EGPSound and light in Philea, Aswanprice:£21/215 EGPI think it will be easier for you to just take Egyptian pounds with you. This way you wont get confused as to which you are paying with. I hope this helps, sorry for the confusion!Kind regardsCheryl, yoor editor