This has already been answered fairly recently...if you go on the Thomson cruises answers it is four below your question..
The drinks are like our pub prices and the cocktails of the day good value. Go in the Horizons Bar and sit on the chairs with foot stools right at the front with amazing views. Just loved this.
Petra bus £72. Can do this by taxi very easily and less than half the price particularly if there are four of you. We went with Thomsons.
Classic Egypt £68. More difficult to do alone, (so we were told.)
Beach transfer £16. Pay the extra and take the boat for £20 to see the marine life. Take tablet if you get sea sick though.